Project Kusha: India’s Air Defence System, Kusha Vs S 400

Project Kusha

India’s pursuit of strategic autonomy in air defence has entered a transformative phase with Project Kusha, a cutting-edge long-range air defence initiative led by the Defence Research and Development Organisation (DRDO). Designed as a multi-tier surface-to-air missile (SAM) system, Project Kusha aims to protect Indian airspace from emerging and sophisticated aerial threats such as stealth aircraft, drones, cruise missiles, hypersonic weapons, and ballistic threats.

With a projected cost of ₹21,700 crore and expected induction between 2028 and 2030, Project Kusha is set to become a cornerstone of India’s layered air defence architecture, reducing dependence on imported systems while boosting indigenous capability.

What is Project Kusha?

Project Kusha, also referred to as the Extended Range Air Defence System (ERADS) or Precision-guided Long-Range Surface Air Missile is a long-range SAM programme developed to complement and eventually extend beyond India’s current air defence systems.

The system is designed to:a

  • Detect, track and neutralise a wide spectrum of aerial threats from fighter jets and drones to cruise missiles.
  • Deploy three variants of interceptor missiles (M1, M2, M3) with increasing ranges.
  • Integrate with India’s Integrated Air Command and Control System (IACCS) for network-centric air defence.

Why Project Kusha is a Game-Changer in India’s Air Defence Strategy?

Project Kusha marks a transformational shift in India’s air defence capability by introducing an indigenous long-range interception system comparable to global standards. It strengthens strategic autonomy while enhancing India’s ability to counter next-generation aerial threats.

  • Strategic Autonomy & Self-Reliance: Developed by the Defence Research and Development Organisation (DRDO), Project Kusha reduces India’s dependence on foreign systems and aligns with the Atmanirbhar Bharat defence vision.
  • Multi-Tier Long-Range Protection: With interceptor variants ranging from 150 km to 400 km, it creates a layered defensive shield capable of engaging threats at multiple distances and altitudes.
  • Counter to Advanced & Hypersonic Threats: The system is designed to detect and neutralise stealth aircraft, cruise missiles, UAV swarms, and potential hypersonic weapons, enhancing India’s deterrence capability.
  • Seamless Integration with National Defence Grid: Project Kusha will integrate with India’s Integrated Air Command and Control System (IACCS), enabling real-time network-centric warfare and coordinated air defence operations.

Also Read: Top 10 Air Defence Systems in the World

Interceptor Variants Under Project Kusha

Project Kusha is built on a three-layer interceptor architecture designed to neutralise threats at varying ranges, altitudes, and speeds.

Interceptor Variants Under Project Kusha

Variant

Range (Approx.)

Primary Targets

Key Capability

Strategic Role

Kusha-M1

150 km

Fighter jets, UAVs, cruise missiles

AESA seeker, high agility interception

First long-range defensive layer beyond medium-range systems

Kusha-M2

250 km

Stealth aircraft, high-speed missiles

Advanced booster & network-centric guidance

Expands engagement envelope in mid-tier defence

Kusha-M3

350–400 km

AWACS, refuellers, high-value airborne assets

Long-burn propulsion & extended radar cueing

Backbone of India’s long-range strategic air shield

Project Kusha vs S-400

Project Kusha represents India’s push toward indigenous long-range air defence capability, while the S-400 is a proven Russian system currently deployed by India. While both systems offer extended interception ranges, Project Kusha focuses on strategic autonomy and future scalability within India’s integrated defence grid.

Project Kusha vs S-400

Feature

Project Kusha

S-400

Country of Origin

India

Russia

Developer

Defence Research and Development Organisation (DRDO)

Almaz-Antey

Operational Status

Under development (expected 2028–2030 induction)

Operational since 2007; inducted in India from 2021

Maximum Range

~350–400 km (M3 variant)

Up to 400 km (40N6 missile)

Interceptor Variants

150 km, 250 km, 350–400 km

40N6 (400 km), 48N6 (250 km), 9M96 series

Target Types

Aircraft, UAVs, cruise missiles, high-value airborne assets, potential hypersonic threats

Aircraft, cruise missiles, ballistic missiles, AWACS

Radar & Integration

Indigenous long-range radar; integrated with India’s IACCS

Advanced multi-function 3D radar; standalone system integration

Strategic Objective

Strengthen Atmanirbhar Bharat & defence autonomy

Strengthen long-range air defence through foreign procurement

Project Kusha FAQs

Q1: What is Project Kusha?

Ans: Project Kusha is an indigenous long-range surface-to-air missile (SAM) defence system being developed by the Defence Research and Development Organisation (DRDO).

Q2: What is the range of Project Kusha?

Ans: Project Kusha will feature three interceptor variants with approximate ranges of 150 km, 250 km, and 350–400 km, providing multi-layered protection against various aerial threats.

Q3: When will Project Kusha become operational?

Ans: The first prototype trials are expected around 2026, with phased induction into the Indian Air Force likely between 2028 and 2030, subject to successful testing and validation.

Q4: Who will operate Project Kusha?

Ans: The system is primarily being developed for the Indian Air Force (IAF), with future deployment plans for the Indian Navy to strengthen maritime air defence.

Q5: How is Project Kusha different from the S-400 system?

Ans: Unlike the Russian-made S-400, Project Kusha is fully indigenous and aims to provide similar long-range interception capability while strengthening India’s defence self-reliance and integration with domestic command networks.

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