Project Kusha Explained: India’s Long-Range Air Defence System, Variants, Range and Technology

Featured image showing a Project Kusha missile launch with key details about its reported range, interceptor variants, radar network and role in India’s indigenous long-range air-defence programme.

📅July 25, 2026 | By Pulse India News Desk

Defence Technology Explained

From interceptor missiles and long-range radars to networked command systems, Project Kusha is being developed to strengthen the outer layers of India’s air-defence network and reduce dependence on imported strategic systems.

Developed by DRDO Long-range surface-to-air missile system Maiden flight test: July 23, 2026 Development programme
Latest update
DRDO conducted the maiden flight test of the Kusha long-range surface-to-air missile on July 23, 2026. The missile intercepted an electronic target simulating a high-speed, high-altitude aerial threat during the test from APJ Abdul Kalam Island off the Odisha coast.

Project Kusha is not simply a new missile. It is a complete air-defence weapon system expected to combine interceptor missiles, long-range surveillance radars, fire-control radars, mobile launchers, secure communications and an integrated command-and-control centre.

3 Reported interceptor classes
150–350 km Reported engagement tiers
DRDO Principal development agency
In testing Not yet operationally inducted

What is Project Kusha?

Project Kusha is India’s programme to develop an indigenous long-range surface-to-air missile system for the Indian Air Force. It is intended to detect, track and neutralise aerial threats at considerably longer distances than India’s existing short- and medium-range indigenous systems.

The Ministry of Defence says the Kusha system is being developed to counter a wide variety of threats, including fighter aircraft, missiles, unmanned aerial vehicles and large enemy aircraft across a broad range and altitude envelope.

Unlike an individual missile, Kusha is expected to operate as a networked system. The missile interceptors will work alongside surveillance radars, engagement radars, launch vehicles, command posts and secure data links to create a complete long-range air-defence battery.

Officially confirmed: DRDO has confirmed the successful maiden flight test and the indigenous development of the missile, radars and command-and-control centre. Complete operational specifications remain restricted.

Kusha missile test: Why is India testing the system now?

Video footage associated with the developmental flight testing of the Kusha long-range surface-to-air missile. The precise interceptor configuration visible in the clip has not been independently established.

India is testing Kusha because the programme has moved from subsystem design and ground validation into the more demanding flight-development phase. A missile system cannot be approved for military deployment solely on the basis of computer simulations or laboratory testing.

Successive trials must demonstrate the performance of the missile’s propulsion, control system, navigation, guidance, seeker, communication links and engagement sequence. Later trials must also validate the complete weapon system against different target profiles and under realistic electronic-warfare conditions.

What the maiden test demonstrated

During the July 23 trial, an electronic target simulated a high-speed, high-altitude aerial threat. According to the Ministry of Defence, the Kusha missile successfully intercepted the target.

The result is an important engineering milestone, but it does not mean that the full system is ready for immediate operational deployment. Multiple developmental and user trials are still expected.

Kusha M1, M2 and M3 interceptor variants

Project Kusha has been reported as a three-tier air-defence system built around interceptor classes commonly identified as M1, M2 and M3. These missiles would provide overlapping engagement zones and allow commanders to select an interceptor according to the target’s distance, altitude, value and flight profile.

M1
Reported range: about 150 km

Expected to form the inner Kusha engagement layer against tactical aircraft, unmanned aircraft, cruise missiles and other aerodynamic threats.

M2
Reported range: about 250 km

Intended to provide a wider engagement zone against combat aircraft, missiles and high-value airborne platforms operating farther from the protected area.

M3
Reported range: about 350 km

Planned as the outer interceptor layer, potentially threatening airborne early-warning aircraft, tankers, surveillance platforms and long-range strike aircraft.

Representational comparison of Project Kusha M1, M2 and M3 missile variants with reported engagement ranges
Representational comparison of the proposed Kusha M1, M2 and M3 interceptors. Missile appearances and some technical claims in the graphic have not been released as official DRDO specifications.
Conceptual diagram comparing the reported Kusha M1, M2 and M3 interceptor configurations
Conceptual configuration comparison of the three reported Kusha interceptor classes. This is a representational graphic rather than an official engineering drawing.
Specification caution: The 150 km, 250 km and 350 km ranges are widely reported programme objectives. DRDO did not publish a full variant-by-variant specification sheet with its maiden-test announcement.

Project Kusha technical specifications

Specification Confirmed or reported information Assessment
System category Mobile, land-based long-range surface-to-air missile system Confirmed role
Developer DRDO laboratories with Indian industry partners Officially confirmed
Primary user Indian Air Force Programme requirement
Interceptor classes M1, M2 and M3 Reported programme structure
Engagement ranges Approximately 150 km, 250 km and 350 km Reported or planned figures
Target set Fighter aircraft, missiles, UAVs and large enemy aircraft Officially confirmed
Radar network Surveillance and fire-control radars Officially confirmed generally
Command system Integrated command-and-control centre Officially confirmed
Launch arrangement Road-mobile, canister-based launch system expected Reported configuration
Propulsion Solid-propellant missile architecture expected Not fully disclosed
Guidance Inertial or mid-course guidance with radar updates and terminal seeker-based homing expected Detailed architecture not disclosed
Current status Developmental flight-testing phase Confirmed
Operational status Not yet inducted Confirmed by programme stage

Range, guidance and technology used by Project Kusha

Long-range surveillance radar

Searches a wide volume of airspace, detects approaching targets, establishes tracks and supplies an early-warning picture to the command centre.

Fire-control radar

Generates precise target information, supports engagement planning and provides guidance updates to interceptor missiles during flight.

Networked command and control

Combines information from sensors, prioritises threats and assigns the most suitable missile and firing unit to each target.

Secure data links

Transmit target updates and engagement commands between radars, command posts, launchers and missiles while resisting interference.

Terminal seeker

An onboard seeker is expected to refine the target’s position during the final phase and improve accuracy against manoeuvring threats.

Electronic-warfare resistance

The system is expected to incorporate frequency agility, secure communications and electronic counter-countermeasure features.

Project Kusha infographic explaining long-range surveillance and fire-control radar roles
Illustrative explanation of how long-range surveillance and fire-control radars may work together within the Kusha weapon system. The radar designs and detailed features are representational.

Expected engagement sequence

A typical Kusha engagement could begin when the surveillance radar detects an approaching aircraft, drone or missile. The command centre would then classify the track, assess its threat level and select an appropriate interceptor.

After launch, the missile would navigate towards the predicted interception point while receiving updated target information. During the terminal phase, its onboard seeker would attempt to acquire and home on the target.

Not all technology details are public. Claims concerning exact radar bands, semiconductor materials, missile speed, seeker construction, interception altitude and simultaneous engagement capacity should be treated cautiously unless confirmed by DRDO.

Where Kusha fits in India’s layered air defence

No single missile can efficiently stop every type of aerial threat. India therefore employs a layered approach in which different systems defend different ranges, altitudes and target categories.

S-400
Existing strategic long-range air-defence capability using multiple interceptor types.
Up to about 400 km*
Project Kusha
Planned indigenous long-range layer against aircraft, missiles, UAVs and high-value airborne platforms.
About 150–350 km*
MRSAM
Mobile medium-range defence against enemy aircraft and guided weapons.
Medium range
Akash family / QRSAM
Short- and medium-range protection for formations, bases and vulnerable areas.
Short to medium range
VSHORAD / point defence
Close protection against low-flying aircraft, helicopters, drones and nearby threats.
Close range
Infographic showing Project Kusha within India’s layered air-defence network
Illustrative positioning of Project Kusha within India’s layered air-defence network. Dedicated ballistic missile defence interceptors perform a separate and specialised role.

Kusha is expected to complement the S-400 rather than immediately replace it. The Russian system is already operational, while Kusha remains under development and must complete extensive testing.

India’s dedicated ballistic missile defence interceptors also form a separate specialised layer. Although some reports associate Kusha with selected missile-defence roles, the maiden test was officially described as an interception of a simulated high-speed, high-altitude aerial threat, not as a demonstrated operational ballistic-missile interception.

Project Kusha and Atmanirbhar Bharat

The programme brings together indigenous missile propulsion, guidance, radar, electronics, secure communications, command software, mobile launchers and domestic manufacturing. Successful development would give India greater control over production, maintenance, upgrades, ammunition replenishment and long-term system availability.

The Ministry of Defence has stated that all major Kusha weapon-system elements, including the missiles, radars and command-and-control centre, are being developed by DRDO laboratories and Indian industry partners.

This is strategically important because long-range air-defence systems are among the most complex military technologies to design and manufacture. Domestic production can reduce exposure to foreign supply restrictions and enable future improvements to be made according to India’s operational needs.

Project Kusha development status

Project Kusha is currently in the developmental flight-testing phase. The maiden flight test on July 23, 2026, established an important baseline, but the complete interceptor family and integrated weapon system have not yet completed operational user trials.

Programme element Current public status
System concept and design Advanced development
Maiden Kusha missile flight Successfully completed on July 23, 2026
Three-interceptor family Reportedly under development
Surveillance and fire-control radars Development and integration underway
Command-and-control network Under development
Integrated weapon-system trials Further trials required
Indian Air Force user trials Not publicly confirmed as completed
Production clearance Not yet announced
Operational induction Pending successful development and user evaluation
Infographic showing the reported development status and testing roadmap of Project Kusha
Illustrative Project Kusha development roadmap. Individual completion percentages, missile-variant identification and future dates shown in third-party graphics should not be treated as official unless confirmed by the Ministry of Defence or DRDO.

What trials are likely to follow?

Future trials are expected to examine full-range performance, low- and high-altitude targets, manoeuvring threats, radar integration, electronic interference, simultaneous tracking and engagement, salvo launches and complete battery-level operation.

The Indian Air Force would then need to evaluate the system in operational scenarios before large-scale production and induction could begin.

Why Project Kusha is important for India

Longer defensive reach

Kusha could engage certain threats farther from protected cities, air bases, military formations and strategic infrastructure.

Protection against evolving threats

Modern attacks can combine fighters, drones, cruise missiles, precision weapons and electronic warfare in a single operation.

Reduced import dependence

Indigenous production would improve access to spare parts, interceptor stocks, upgrades and lifecycle support.

Protection of high-value assets

Long-range interceptors could force hostile surveillance, tanker and command aircraft to operate farther from Indian airspace.

Networked air-defence architecture

Kusha can contribute to a larger sensor-and-shooter network rather than operating as an isolated missile battery.

Growth of Indian defence industry

The programme can expand domestic capability in radars, seekers, propulsion, electronics, launchers and command software.

The successful maiden test is therefore an important milestone rather than the final destination. Kusha must still prove that its different missiles, sensors and command systems can operate together reliably under demanding conditions.

If the remaining development programme succeeds, Project Kusha could become one of the most consequential indigenous defence systems produced by India and a central element of the country’s future multi-layered air-defence network.

Sources and specification note

Official authorities have not disclosed a complete Project Kusha specification sheet. Variant ranges, launcher configuration, seeker technology, missile speed and induction schedules described as “reported,” “planned” or “expected” should not be interpreted as demonstrated operational performance.

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