Project Kusha LR-SAM: DRDO Air Defence Test 2026

Quick answer: what happened with Project Kusha in July 2026?

On 23 July 2026, DRDO conducted the maiden flight-test of the Kusha Long-Range Surface-to-Air Missile from Dr APJ Abdul Kalam Island off the Odisha coast. The Ministry of Defence said the missile intercepted an electronic target simulating a high-speed, high-altitude aerial threat. Kusha is the long-range layer of Mission Sudarshan Chakra, India's planned indigenous air and missile defence shield.

Syllabus mapping

• Prelims: Project Kusha, LR-SAM, DRDO, APJ Abdul Kalam Island, IACCS, S-400 Triumf, Akash, QRSAM, MR-SAM/Barak-8, Ballistic Missile Defence programme, IGMDP, Mission Sudarshan Chakra, iDEX, Defence Acquisition Procedure.
• Mains GS-3 (Security): Security challenges and their management; the role of external state actors; defence preparedness.
• Mains GS-3 (Science and Technology): Indigenisation of technology and developing new technology; achievements of Indians in science and technology.
• Essay: Self-reliance in strategic sectors; technology and national power.

Why in news

The Defence Research and Development Organisation conducted the maiden flight-test of the Kusha Long-Range Surface-to-Air Missile on 23 July 2026 from Dr APJ Abdul Kalam Island off the coast of Odisha. The Ministry of Defence stated that the test was conducted against an electronic target simulating high-speed and high-altitude aerial threat, which was successfully intercepted by the missile system.

Raksha Mantri Rajnath Singh said the test marked an important milestone in Indian defence research and development, that the capability to develop a long-range surface-to-air missile system "is possessed only by a handful of nations", and that it "will also eliminate the import dependency for such systems". The Ministry recorded that the Defence Secretary and the Secretary, Department of Defence R&D and Chairman DRDO monitored all activities during the launch.

Note what the ministry did not say. Janes reported explicitly that the MoD did not disclose details of the system's range or performance. Every range figure you will read in the press — including in this article — is reported rather than officially confirmed. That distinction is worth carrying into your notes, and into any answer you write.

Background and core concept: why India needs Kusha

Air defence is an arithmetic problem before it is a technology problem. If your longest-reaching system covers 100 km and the adversary launches stand-off weapons from 200 km, you never get a shot at the launch platform — you can only try to shoot down what it releases, which is smaller, faster and more numerous. Reach buys engagement opportunities, and engagement opportunities are what keep leakage rates low.

India's problem has been a gap at the top of that ladder. The domestic inventory topped out well short of the depth modern stand-off warfare demands, and the only system that closed the gap — the Russian S-400 Triumf — was imported, finite in number and politically exposed.

The layered air defence concept

Modern air defence is built as overlapping shells, not a single wall. Each layer catches what the layer beyond it missed:

• Very short range: guns, man-portable systems and counter-drone effectors defending a single installation.
• Short to medium range: the indigenous Akash and QRSAM, plus the Israeli Spyder in IAF service.
• Medium range: the MR-SAM, developed jointly by DRDO and Israel Aerospace Industries from the Barak-8 family. Barak-8's naval variant is designated LR-SAM and its land variant MR-SAM — a nomenclature collision with Project Kusha's LR-SAM, and a classic Prelims trap.
• Long range: the S-400 today; Kusha tomorrow.
• Ballistic missile defence: a separate two-tier architecture with Prithvi Air Defence (PAD) for exo-atmospheric and Advanced Air Defence (AAD) for endo-atmospheric interception.

None of this works as a collection of separate systems. It works only when a common command-and-control network decides which sensor tracks a target and which shooter engages it. In the Indian Air Force that network is the Integrated Air Command and Control System (IACCS), and Kusha is designed to plug into it.

Key facts and figures

Particular	Detail
Programme name	Project Kusha
System	Long-Range Surface-to-Air Missile (LR-SAM)
Developer	Defence Research and Development Organisation (DRDO)
Maiden flight-test	23 July 2026
Test location	Dr APJ Abdul Kalam Island, off the Odisha coast
Target used	Electronic target simulating a high-speed, high-altitude aerial threat
Variant flown	M1 interceptor (as reported by The Diplomat)
Development clearance	Cabinet Committee on Security, May 2022 (mission-mode project)
Acceptance of Necessity	September 2023 — five IAF squadrons, Rs 21,700 crore
Reported interceptor ranges	M1 about 150 km; M2 about 250 km; M3 about 350-400 km
Reported industry partners	Bharat Dynamics Limited and Solar Industries as Development-cum-Production Partners; Bharat Electronics Limited for radars and control systems
Command network	Integrated Air Command and Control System (IACCS)
Parent architecture	Mission Sudarshan Chakra (announced 15 August 2025, horizon 2035)
Reported induction window	2028-29 (Times of India) to 2030 (The Diplomat); no official date announced

Detailed explainer

The programme timeline

May 2022: the Cabinet Committee on Security — the apex national security body, chaired by the Prime Minister with the Ministers of Defence, Home Affairs, External Affairs and Finance — cleared development of the LR-SAM system as a mission-mode project. Clearance at that level signals strategic priority rather than routine procurement.

September 2023: the Ministry of Defence accorded Acceptance of Necessity (AoN) for the procurement of five squadrons for the Indian Air Force at Rs 21,700 crore. AoN is the first formal step in India's capital acquisition process under the Defence Acquisition Procedure; it establishes the requirement and the acquisition category, and precedes the request for proposal and contract. A larger total buy and a naval variant have been discussed in reporting but are not sanctioned.

15 August 2025: the Prime Minister announced Mission Sudarshan Chakra from the Red Fort, setting a 2035 target for a nationwide multi-layered air and missile defence shield covering strategic and civilian assets, integrated with counter-strike capability — three months after the aerial exchanges following Operation Sindoor tested India's existing network.

23 July 2026: the maiden flight-test.

The three-interceptor architecture

Project Kusha is not one missile. Reporting consistently describes three interceptor variants sharing a common design lineage:

• M1 — reported as a short-to-medium range interceptor engaging targets to about 150 km. This is the variant reported to have flown in July 2026.
• M2 — reported as a medium-to-long range interceptor to about 250 km.
• M3 — reported with extended reach. Here the sources diverge: The Hindu BusinessLine and The Diplomat report 350-400 km; the Times of India and ThePrint have reported 350 km. Present it as a band.

The Diplomat reports that the kill vehicle remains the same across variants, with a booster added to augment range. If accurate, that is engineering sense — a common seeker, warhead and terminal guidance package across three interceptors compresses development risk, simplifies production tooling and reduces the logistics burden on operating units.

On performance, the only figure in circulation traces to sources quoted by the Times of India in 2023: a single-shot kill probability of not less than 80% for a single launch and 90% for a salvo. That is one reported source, not an official specification.

Who is building it

The Ministry of Defence stated that all key elements of the weapon system — the missile, the radars, and the command and control systems — were developed indigenously by DRDO laboratories in collaboration with industry partners. On the industry side, The Diplomat reported Bharat Dynamics Limited and Solar Industries as the chosen Development-cum-Production Partners, and Bharat Electronics Limited as DRDO's development partner for radars and control systems. BEL's Chairman and Managing Director Manoj Jain has publicly described the company as jointly developing many Kusha subsystems, mainly different types of radars and control systems.

This partner structure is itself the story. Under the older model DRDO developed a system and handed it to a public sector undertaking for production years later, with predictable integration pain. The Development-cum-Production Partner model brings the manufacturer into the design phase. Whether it delivers here is testable: the gap between this first flight and the first delivered squadron will show it.

What a single successful test does and does not prove

Be precise here, because it separates a serious answer from a celebratory one. A maiden flight-test against an electronic target validates that the missile flies its intended profile, that the seeker acquires and tracks, and that the guidance and control chain closes the loop. It does not validate performance against a manoeuvring or low-observable target, in a jammed electromagnetic environment, in salvo, or across the temperature and altitude extremes of Indian deployment. Those come in user trials, which reporting suggests run 12 to 36 months.

Multi-dimensional analysis

The strategic autonomy dimension

India contracted for the S-400 from Russia in October 2018 and absorbed real diplomatic cost for it, including the risk of sanctions under the United States' Countering America's Adversaries Through Sanctions Act. The system has performed, but the episode showed the price of depending on an imported capability at the top of the ladder: the supplier's geopolitics becomes your constraint, and the war in Ukraine subsequently compressed Russian capacity to deliver and sustain exports.

An indigenous LR-SAM changes that calculus. It is not primarily about saving money — Rs 21,700 crore for five squadrons is not cheap. It is about producing more units when you need them, modifying software and threat libraries without a foreign vendor's consent, and sustaining the fleet through a long conflict without hard-currency spares.

The operational dimension: what Kusha actually changes

The most consequential effect of a 350-400 km interceptor is not shooting down more missiles. It is pushing the adversary's launch aircraft further back. A strike aircraft forced to release its stand-off weapons from beyond your engagement envelope flies a longer route, carries less payload, needs more tanker support and gives you more warning time. Long-range air defence is therefore partly an offensive-denial instrument: it degrades the enemy's ability to generate sorties, not just to hit targets.

The second effect is protecting high-value airborne assets. Early warning aircraft, tankers and intelligence platforms are large, slow and irreplaceable, and their survival depends on orbiting inside a protected bubble. A long-range SAM extends that bubble.

The industrial dimension

Air defence is one of the few segments where India's indigenisation push has a plausible export story. The domestic requirement — five squadrons sanctioned, more planned, plus a possible naval variant — is large enough to amortise development. Indian defence exports rose from Rs 686 crore in 2013-14 to a record Rs 23,622 crore in 2024-25, against a government target of Rs 50,000 crore by 2029. A proven, sanctions-free long-range SAM at Indian cost points would sell into a market where the alternatives are American, Russian, Chinese or Israeli, each carrying its own political freight.

The honest caveats

India's missile record is strong but not uniformly so. Of the five IGMDP systems, Trishul never entered regular service. Akash took roughly two decades from launch to induction. The Light Combat Aircraft and the Kaveri engine remain the standing cautionary examples of timelines slipping past the point where the original requirement stays relevant.

Second, the missile is the easy part of an air defence system. The hard parts are the surveillance radar, the fire-control radar, the battle-management software and network integration — exactly the elements about which the least is publicly confirmable. Detailed claims about Kusha's radar suite circulate on defence-enthusiast websites and cannot be traced to DRDO or BEL statements. Do not repeat those figures in an examination answer.

Third, Mission Sudarshan Chakra's 2035 horizon is ambitious. Israel's Iron Dome, David's Sling and Arrow ecosystem took decades and sustained external funding to mature, and Israel defends an area smaller than several Indian districts. Extending comparable coverage over India's landmass and coastline is a problem of sensor density and cost per intercept as much as of missile technology.

The doctrinal question worth raising

Interceptors are expensive; drones are cheap. Expending a multi-crore interceptor on a low-cost one-way attack drone is unsustainable at scale. A long-range SAM is the right answer to a fighter or a cruise missile and the wrong answer to a swarm. Kusha therefore has to sit alongside directed-energy weapons, guns and electronic warfare in the lower tiers, with the architecture assigning each target to the cheapest effector that can kill it. That allocation logic is a command-and-control problem, which brings the argument back to IACCS.

Comparative and global perspective

System	Origin	Reported engagement range	Status for India
S-400 Triumf	Russia	Up to about 400 km	In service; contracted October 2018
Project Kusha LR-SAM	India (DRDO)	M1 about 150 km, M2 about 250 km, M3 about 350-400 km (reported)	Maiden flight-test July 2026; induction reported for 2028-30
MR-SAM / Barak-8	India-Israel (DRDO with IAI)	Medium range; the naval variant is designated LR-SAM	In service with all three services in respective variants
Akash	India (DRDO, IGMDP)	Short to medium range	In service; export interest
QRSAM	India (DRDO)	Short range, quick reaction	Under induction
Ballistic Missile Defence (PAD/AAD)	India (DRDO)	Two-tier exo- and endo-atmospheric interception	Developmental / limited

Internationally the comparators are the American Patriot PAC-3 and THAAD, the Israeli Arrow and David's Sling, and the Chinese HQ-9 family. What distinguishes the small group of states fielding indigenous long-range SAMs is not missile chemistry but the ability to integrate a full sensor-to-shooter chain against a manoeuvring target. That is the club Rajnath Singh was referring to.

The lesson from Operation Sindoor

The May 2025 hostilities gave India's air defence network its first large-scale operational test in the drone-and-missile era. Mission Sudarshan Chakra was announced three months later. Operational stress, then architectural commitment — that sequence explains the programme's timeline better than any technology narrative.

Committee, court and expert views

Raksha Mantri Rajnath Singh (23 July 2026): described the test as an important milestone in Indian defence R&D, noted that long-range SAM development capability is "possessed only by a handful of nations", and said it "will also eliminate the import dependency for such systems and signifies a giant leap in air defence capability of the nation".

The Ministry of Defence: recorded that all key elements — missile, radars, command and control — were developed indigenously by DRDO laboratories with industry partners, while declining to disclose range or performance parameters. Janes noted a vertical-launch configuration and stressed the absence of official range data, the most useful corrective against over-claiming.

BEL Chairman and Managing Director Manoj Jain: confirmed on an earnings call that BEL is DRDO's development partner for several Kusha subsystems, mainly radars and control systems.

Business Today assessed that Kusha will complement rather than replace India's S-400 systems — the analytically correct framing. The Diplomat reported M1 as the variant tested, described the common kill vehicle with booster augmentation, and named BDL and Solar Industries as Development-cum-Production Partners with induction targeted by 2030.

Way forward

1. Publish a declassified milestone schedule, not specifications. DRDO can protect performance parameters while stating publicly when M2 and M3 flight trials, user trials and first squadron delivery are expected. The absence of a public schedule is what allows a first flight test to be read as near-induction.
2. Order the radar and battle-management chain now, not after missile qualification. The interceptor is unlikely to be the schedule driver; the surveillance radar, fire-control radar and battle-management software are. Production orders on BEL placed in parallel with user trials would prevent the classic Indian failure mode of a qualified missile waiting on its radars.
3. Define the effector-allocation doctrine before deployment. A Kusha interceptor must not be the default answer to a cheap attack drone. IACCS needs codified engagement rules and a lower tier of guns, electronic warfare and directed-energy weapons able to absorb saturation attacks, so that long-range rounds are conserved for targets that justify them.
4. Take the naval variant decision explicitly. A shipborne long-range SAM sharing the Kusha kill vehicle would extend fleet air defence and improve programme economics through longer production runs. Leaving it unstated delays the launcher and radar design choices a naval variant imposes.
5. Build the export case during user trials, not after. Akash showed that the offer must be packaged — training, sustainment, local assembly — not merely the hardware. With a Rs 50,000 crore export target for 2029, that packaging work should run in parallel with qualification.
6. Sustain funding through the unglamorous middle years. The risk to Indian defence programmes is rarely the first test or the final induction; it is the years of iterative failure in between, once political attention has moved on. A ring-fenced multi-year allocation reported to Parliament is the safeguard.

Static and current linkage

• IGMDP (1983): launched under Dr A.P.J. Abdul Kalam, covering Prithvi, Agni, Akash, Trishul and Nag. Formally concluded in 2008 after building India's missile design and test base.
• DRDO: established in 1958 under the Department of Defence Research and Development, Ministry of Defence; key labs include DRDL and the Research Centre Imarat at Hyderabad for missiles and the Electronics and Radar Development Establishment at Bengaluru for radars. Testing happens at the Integrated Test Range, Chandipur, and Dr APJ Abdul Kalam Island.
• Ballistic Missile Defence programme: two-tier — Prithvi Air Defence (PAD) for exo-atmospheric and Advanced Air Defence (AAD) for endo-atmospheric interception; related to Mission Shakti, the anti-satellite test of 27 March 2019.
• Atmanirbhar Bharat in defence: positive indigenisation lists notified by the Department of Military Affairs and the Department of Defence Production; the Defence Acquisition Procedure, 2020, which places Buy (Indian-IDDM) at the top of the acquisition hierarchy; defence industrial corridors in Uttar Pradesh and Tamil Nadu; iDEX, launched in 2018 to bring startups and MSMEs into defence innovation.
• Cabinet Committee on Security: chaired by the Prime Minister — the apex decision-making body for strategically significant defence acquisitions.
• Economic Survey: defence expenditure as a share of GDP and of the Union Budget; capital versus revenue expenditure in defence.

Prelims pointers

• Project Kusha is DRDO's Long-Range Surface-to-Air Missile (LR-SAM) programme.
• Maiden flight-test: 23 July 2026.
• Test site: Dr APJ Abdul Kalam Island, off the Odisha coast — formerly known as Wheeler Island.
• The target was an electronic target simulating a high-speed, high-altitude aerial threat.
• The Ministry of Defence did not disclose range or performance parameters.
• Development cleared by the Cabinet Committee on Security in May 2022 as a mission-mode project.
• Acceptance of Necessity accorded in September 2023 for five IAF squadrons at Rs 21,700 crore.
• Reported interceptor variants: M1 (about 150 km), M2 (about 250 km), M3 (about 350-400 km).
• The variant reported to have flown in July 2026 is the M1.
• Reported Development-cum-Production Partners: Bharat Dynamics Limited and Solar Industries; Bharat Electronics Limited is DRDO's development partner for radars and control systems.
• Kusha is to be integrated with the IAF's Integrated Air Command and Control System (IACCS).
• Mission Sudarshan Chakra was announced by the Prime Minister on 15 August 2025, with a 2035 horizon.
• India's S-400 Triumf contract with Russia was signed in October 2018.
• The Barak-8 naval variant is designated LR-SAM and the land variant MR-SAM — developed jointly by DRDO and Israel Aerospace Industries.
• Akash is an indigenous short-to-medium range SAM from the IGMDP; QRSAM is the Quick Reaction Surface-to-Air Missile.
• Akashteer is the Army's air defence control and reporting system built by BEL — do not confuse it with Akash.
• India's BMD programme is two-tiered: PAD (exo-atmospheric) and AAD (endo-atmospheric).
• The IGMDP was launched in 1983 under Dr A.P.J. Abdul Kalam; its five systems were Prithvi, Agni, Akash, Trishul and Nag.
• DRDO was established in 1958; the Raksha Mantri at the time of the test was Rajnath Singh.
• India's defence exports reached a record Rs 23,622 crore in 2024-25; the target is Rs 50,000 crore by 2029.
• Under the Defence Acquisition Procedure, 2020, the highest-priority category is Buy (Indian-IDDM).
• Mission Shakti, India's anti-satellite test, was conducted on 27 March 2019.

Mains linkage

Probable question 1 (GS-3, 15 marks): "Indigenous development of long-range air defence is as much a question of strategic autonomy as of technology. Discuss with reference to Project Kusha."

Skeleton: The July 2026 maiden test and the sanctioned scale → why long-range interception matters operationally → the dependency costs of imported systems (CAATSA exposure, supply-chain compression, hard-currency sustainment, no software access) → the industrial and export dividend → caveats on timelines and the radar and command-and-control chain → judgement. Keywords: strategic autonomy, layered air defence, sensor-to-shooter chain, Atmanirbhar Bharat, Buy (Indian-IDDM), sustainment.

Probable question 2 (GS-3, 15 marks): "Mission Sudarshan Chakra envisages a nationwide air and missile defence shield by 2035. Examine the technological and economic challenges in realising it."

Skeleton: What the mission promises and why it followed Operation Sindoor → the layers required and India's inventory gaps → the scale problem against Israel's far smaller defended area → the cost-per-intercept problem against cheap drones → sensor density, space-based early warning and command-and-control integration → industrial capacity → a realistic sequencing proposal. Keywords: saturation attack, exchange ratio, directed-energy weapons, IACCS, early warning, cost per intercept.

Mains practice question with model answer structure

Q. "A successful maiden flight-test is a beginning, not an achievement." Critically examine this proposition with reference to Project Kusha and India's pursuit of an indigenous layered air defence shield. (250 words, 15 marks)

Introduction (about 30 words): State the fact — DRDO's maiden Kusha LR-SAM flight-test on 23 July 2026 from APJ Abdul Kalam Island against an electronic target — and flag that the Ministry of Defence disclosed no range or performance parameters.

Body — what the test genuinely establishes (about 60 words): Validation of flight profile, seeker acquisition and the guidance-control loop; indigenous development of missile, radars and command-and-control by DRDO laboratories with industry partners; entry into a small group of states with long-range SAM development capability; political and budgetary momentum for Mission Sudarshan Chakra.

Body — what remains untested (about 70 words): Performance against manoeuvring and low-observable targets, in jamming, in salvo and across environmental extremes; user trials reported at 12 to 36 months; the sensor and battle-management chain is the likely schedule driver and the least publicly verified element; M2 and M3 variants not yet flown; historical precedent of Trishul and of Akash's two-decade gestation.

Body — the wider architecture (about 60 words): Kusha complements rather than replaces the S-400; the exchange-ratio problem against cheap drones requires cheaper lower-tier effectors; Mission Sudarshan Chakra's 2035 target demands sensor density and cost discipline over a landmass far larger than any comparable defended area.

Conclusion (about 30 words): The test earns confidence, not conclusion. Sustained funding through the unglamorous middle years and parallel investment in radars and command-and-control will determine whether 2026 is remembered as a milestone or a headline.

Key terms glossary

• LR-SAM: Long-Range Surface-to-Air Missile — a ground-launched missile designed to engage aerial targets at long distance. Note that the Barak-8 naval variant also carries this designation.
• Layered air defence: the deployment of overlapping systems of different ranges so that a threat penetrating one layer is engaged by the next.
• Kill vehicle: the terminal element of an interceptor containing the seeker, guidance and warhead that actually engages the target.
• Single-shot kill probability: the likelihood that one interceptor launched at one target destroys it; a salvo launch fires more than one interceptor at a single target to raise that probability.
• Stand-off weapon: a munition released from beyond the reach of the target's defences, allowing the launch platform to survive.
• Acceptance of Necessity (AoN): the first formal approval in India's capital defence acquisition process, establishing the requirement and acquisition category.
• IACCS: Integrated Air Command and Control System — the Indian Air Force's automated network for air situation picture compilation and engagement control.
• Development-cum-Production Partner (DcPP): an industry partner inducted at the design stage so that production capability matures alongside the design.
• Buy (Indian-IDDM): the highest-priority category under the Defence Acquisition Procedure, 2020, covering Indigenously Designed, Developed and Manufactured equipment.
• Exchange ratio: the cost of the interceptor expended relative to the cost of the threat destroyed — the central economic problem of defending against cheap drones.

Quick revision summary

• DRDO conducted the maiden flight-test of the Kusha LR-SAM on 23 July 2026.
• Launch site: Dr APJ Abdul Kalam Island (formerly Wheeler Island), off the Odisha coast.
• Target: an electronic target simulating a high-speed, high-altitude aerial threat; successfully intercepted.
• The Ministry of Defence did not disclose the missile's range or performance parameters.
• The Cabinet Committee on Security cleared Project Kusha for development in May 2022 as a mission-mode project.
• Acceptance of Necessity was accorded in September 2023 for five IAF squadrons at Rs 21,700 crore.
• Three interceptor variants are reported: M1 at 150 km, M2 at 250 km and M3 at 350-400 km.
• The Diplomat reported that the July 2026 test was of the M1 interceptor.
• Bharat Dynamics Limited and Solar Industries are reported as Development-cum-Production Partners.
• Bharat Electronics Limited is DRDO's development partner for radars and control systems.
• Kusha is designed to integrate with the IAF's Integrated Air Command and Control System (IACCS).
• It is a core element of Mission Sudarshan Chakra, announced by the Prime Minister on 15 August 2025 with a 2035 horizon.
• Raksha Mantri Rajnath Singh said the capability is possessed by only a handful of nations and will eliminate import dependency.
• India operates the Russian S-400 Triumf, contracted in October 2018; Kusha is intended to complement rather than replace it.
• The IGMDP was launched in 1983 under Dr A.P.J. Abdul Kalam and covered Prithvi, Agni, Akash, Trishul and Nag.

Frequently asked questions

What exactly was tested on 23 July 2026?

DRDO conducted the maiden flight-test of the Kusha Long-Range Surface-to-Air Missile from Dr APJ Abdul Kalam Island off the Odisha coast. According to the Ministry of Defence, the test was against an electronic target simulating a high-speed, high-altitude aerial threat, which the missile system successfully intercepted. The Diplomat reported that the interceptor flown was the M1 variant. The ministry itself did not disclose range or performance figures.

What are the M1, M2 and M3 interceptors?

Project Kusha is reported to use three interceptor variants of graduated reach: M1 to engage targets up to about 150 km, M2 up to about 250 km, and M3 in the 350 to 400 km band. Reporting differs on the M3 figure — The Hindu BusinessLine and The Diplomat cite 350-400 km, while the Times of India and ThePrint have cited 350 km. The Diplomat reports that the kill vehicle remains common across variants, with a booster added to extend range. Treat all these numbers as reported figures, not officially confirmed specifications.

Is Project Kusha really an 'Indian S-400'?

The comparison is journalistic shorthand and should be handled carefully in an answer. The S-400 Triumf engages targets out to about 400 km and is a mature, deployed system; Kusha has just completed its first flight test. What the comparison correctly captures is the intended role — a long-range, mobile, multi-layer area air defence system integrated into a networked command structure. Business Today reported that Kusha is expected to complement the S-400 rather than replace it immediately.

When will Kusha be inducted?

Reporting varies. The Times of India cited a 2028-29 deployment aim, while The Diplomat reported that development is expected to be completed within a couple of years with induction targeted by 2030. Business Today placed entry into service in the late 2020s or early 2030s. No official induction date has been announced. Use a range and attribute it.

Who is building it apart from DRDO?

The Diplomat reported that Bharat Dynamics Limited and Solar Industries are the chosen Development-cum-Production Partners, while Bharat Electronics Limited is DRDO's development partner for radars and control systems. BEL's Chairman and Managing Director Manoj Jain has publicly confirmed the company's role in jointly developing radars and control systems for Kusha. All key elements — missile, radars, command and control — were developed indigenously by DRDO laboratories with industry partners, according to the Ministry of Defence.

What is Mission Sudarshan Chakra and how does Kusha fit into it?

Mission Sudarshan Chakra was announced by Prime Minister Narendra Modi from the Red Fort on 15 August 2025. It envisages a nationwide, indigenously developed, multi-layered air and missile defence shield covering strategic and civilian assets by 2035, integrated with counter-strike capability. Kusha supplies the long-range interception layer of that architecture.

What does 'layered air defence' actually mean?

It means fielding overlapping systems of different ranges so that a threat that leaks past one layer is engaged by the next. In India's case: very short range guns and man-portable systems at the base, then Akash and QRSAM in the short-to-medium band, MR-SAM and Barak-8 in the medium band, and S-400 and eventually Kusha at long range — all fused through the Integrated Air Command and Control System so that sensors and shooters share a common picture.

Why is indigenous long-range air defence strategically important beyond cost?

Three reasons. Sanctions and supply-chain exposure — foreign systems can be constrained by the supplier's politics, as CAATSA concerns around the S-400 illustrated. Sustainment — spares, upgrades and ammunition for imported systems are a permanent hard-currency and dependency cost. And software sovereignty — a networked air defence system's value lies in its command-and-control code and threat libraries, which a supplier will not hand over. Rajnath Singh's framing that Kusha will 'eliminate the import dependency for such systems' is about all three.

What is the IGMDP and why does it matter here?

The Integrated Guided Missile Development Programme was launched in 1983 under Dr A.P.J. Abdul Kalam and covered five systems — Prithvi, Agni, Akash, Trishul and Nag. It built the design, propulsion, guidance and test infrastructure that later programmes draw on. Akash, its surface-to-air output, is the direct institutional ancestor of Kusha. Trishul, by contrast, did not enter regular service, which is a useful reminder that not every Indian missile programme succeeds.

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Sources

• [Primary] Ministry of Defence press release (PIB Delhi, syndicated full text), “DRDO conducts successful maiden flight-test of 'Kusha' Long-Range Surface-to-Air Missile”, 23 July 2026. Link
• [Primary] DD News (Prasar Bharati), “DRDO successfully conducts maiden flight-test of 'Kusha' long-range air defence missile”, 23 July 2026. Link
• The Hindu BusinessLine, “DRDO conducts successful maiden flight-test of 'Kusha' long-range surface-to-air missile”, 23 July 2026. Link
• The Diplomat, “India Successfully Tests Kusha Long-range Surface-to-Air Missile”, July 2026. Link
• ThePrint, “Project Kusha, India's desi S-400, takes to the skies; maiden test flight successful”, 23 July 2026. Link