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Defence

India Tests Project Kusha: India’s Indigenous Air Defence Shield

Vidyut Vardhan July 28, 2026

India has achieved a major milestone in strengthening its indigenous defence capabilities with the successful maiden flight test of Project Kusha, a long-range surface-to-air missile system being developed by the Defence Research and Development Organization (DRDO).

The test was conducted on July 23, 2026, from APJ Abdul Kalam Island off the coast of Odisha. During the trial, the system successfully intercepted a simulated high-speed, high-altitude aerial target. The test marks an important step towards developing an advanced, home-grown air defence capability for India.

Project Kusha is expected to become an important part of India's multi-layered air defence network and strengthen its ability to counter evolving aerial threats.

What Is Project Kusha?

Project Kusha is an indigenous long-range surface-to-air missile (LR-SAM) programme by DRDO. It's intended for detecting, tracking and intercepting air threats from long distances.

It is not restricted to one missile. It is envisioned as an integrated air defence system consisting of interceptor missiles, advanced radar and command and control systems.

Project Kusha is designed to take on various threats in the air, such as:

  • Fighter aircraft
  • Cruise missiles
  • Drones and Unmanned Aerial Vehicle (UAVs)
  • Large aerial targets
  • There are other high-speed aerial dangers, and if you're not careful, they could get you.

The programme is also a significant move towards developing advanced defence technology in India in an attempt to become self-reliant. 

Project Kusha Maiden Flight Test

The maiden test flight was at the Integrated Test Range on the APJ Abdul Kalam Island, Odisha.

The simulated target, representing a high-speed and high-altitude aerial threat, was successfully engaged by Project Kusha during the trial. The successful intercept was a critical part of the potential system's functionality.

The test is important as it involves a combination of several complex technologies that are required to be integrated for long-range air defence systems. These include communication networks and command and control systems, radar surveillance, target tracking and missile guidance.

The successful trial thus marked a significant step in the country's indigenous air defence efforts.

How Does Project Kusha Work?

A modern air defence system cannot be just an interceptor missile. It must have the ability to sense an incoming threat, monitor its course and respond appropriately.

This is the approach we are using for the development of Project Kusha.

Surveillance and tracking: Radars detect and track aerial objects over long distances.

Command and control: Data from the radar and other sensors is processed to identify potential threats and determine the appropriate response.

Interceptor missiles: Once a target is identified, an interceptor can be launched to engage and neutralise it.

This integrated architecture is expected to allow Project Kusha to work as part of a wider layered air defence network.

Project Kusha Range and Capabilities

Project Kusha is being developed using a number of versions of interceptors for various engagement distances. Previous to this, the programme has been linked to a maximum planned range of 350 to 400 kilometres, depending on the interceptor and the profile of the target.

These figures are for what the system can do and are not to be mistaken for the range exhibited during the maiden test.

More testing will be needed to confirm its performance with various targets, ranges and operating conditions. 

Why Is Project Kusha Important?

Project Kusha is significant for India's defence strategy for several reasons.

Strengthening Indigenous Defence Technology

The programme showcases India's increasing capacity to create advanced missile and air defence technologies. They require a high level of expertise in propulsion, electronics, sensors, radar technology and guidance systems. 

Reducing Import Dependence

An indigenous long-range air defence system may make India less reliant on foreign suppliers for the essential defence capabilities. Domestic development can also offer more control over maintenance activities, upgrades and future improvements. 

Building a Multi-Layered Air Defence Network

Aerial warfare today is characterized by aircraft, cruise missiles, drones, and other UAS. Thus, it is necessary to have different air defence systems for different ranges and altitudes of threats.

The Project Kusha is likely to have been added to India's overall air defence configuration as an additional long-range capability. 

Supporting Atmanirbhar Bharat

The programme aims to foster research, production and technology development in India for Atmanirbhar Bharat, focusing on defence. Indian defence companies can also further boost the defence industrial ecosystem by increasing their participation. 

Project Kusha and the S-400

Project Kusha has been likened to the Russian-built S-400 air defence system, which is also capable of long-range air defence. But they're not the same systems.

India currently has the S-400 in service, and Project Kusha is an indigenous long-range surface-to-air missile initiative that is being developed in India. The Kusha is designed to boost the country's air defence capabilities and to boost indigenous control over critical defence technology.

In this context, Project Kusha can be considered more of an indigenous contribution to India's complex air defence system, rather than an Indian copy of the S-400. 

What Happens Next?

Project Kusha is still in the developmental stage, and the maiden test has been successful. Further trials will be needed for a fully working system.

Future testing is anticipated to test its accuracy, interception performance, radar integration, reliability and countermeasure effectiveness against various airborne targets. 

The system will also need to undergo evaluation and integration before eventual induction into India's armed forces.

Conclusion

The successful maiden flight test of Project Kusha on July 23, 2026, marks a significant step in India's efforts to develop an indigenous long-range air defence system.

Developed by DRDO, Project Kusha is designed to counter multiple aerial threats and strengthen India's multi-layered air defence architecture. Its development also reflects the country's broader focus on self-reliance and Atmanirbhar Bharat in defence.

Although further testing and evaluation are required, the successful trial demonstrates India's growing capability in advanced missile and air defence technology. Project Kusha could eventually become an important component of India's future air defence shield.

FAQs

1. What is Project Kusha?

Project Kusha is India’s indigenous long-range surface-to-air missile system being developed by DRDO to detect and intercept aerial threats such as aircraft, cruise missiles and drones.

2. When was Project Kusha tested?

The maiden flight test of Project Kusha was conducted on July 23, 2026, from APJ Abdul Kalam Island off the Odisha coast.

3. What is the range of Project Kusha?

Project Kusha is being developed with multiple interceptor variants. Its longest-range variant is reported to have a planned range of around 350–400 km.

4. Who developed Project Kusha?

The Defence Research and Development Organisation (DRDO) is developing Project Kusha as part of India’s efforts to strengthen indigenous air defence technology.

5. What can Project Kusha intercept?

Project Kusha is designed to counter aerial threats including fighter aircraft, cruise missiles, drones, UAVs and other high-speed aerial targets.

6. Is Project Kusha India’s version of the S-400?

Project Kusha is often compared with the S-400 because both are long-range air defence systems, but they are not identical. Kusha is India’s indigenous system being developed by DRDO.

7. Why is Project Kusha important for India?

Project Kusha can strengthen India’s multi-layered air defence network, reduce dependence on foreign defence systems and support Atmanirbhar Bharat in defence technology.