India Receives Fourth S-400 Squadron, Bolstering Long-Range Air Defence Capabilities
The AI-enabled system will help Indian operators prioritize aircraft, drones and missiles, officials said, as one more squadron remains under the 2018 deal.
- India received the fourth squadron of the Russia-made S-400 Triumf air defence system by sea recently, marking a significant milestone under the 2018 India-Russia defence agreement.
- Signed in 2018, the agreement covers five squadrons with three already operational; despite delays linked to the Russia-Ukraine conflict, the final unit is expected in 2027.
- The AI-enabled system assists operators in prioritizing aerial threats including ballistic missiles and drones, with each squadron containing 16 vehicles and deploying 128 missiles at a 400 km maximum strike range.
- Defence sources indicate the system will be deployed in an operational sector shortly, building on the S-400's crucial role during Operation Sindoor where it countered aerial threats.
- India is simultaneously expanding its air defence architecture through Project Kusha, an indigenous programme aiming to develop systems with capabilities comparable to the S-400.
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India receives fourth S-400 missile squadron from Russia, bolstering air defence
India’s air defence capabilities have received a major boost with the arrival of the fourth squadron of the Russian-origin S-400 Sudarshan air defence missile system. Defence sources indicated that the system reached the country a few days ago and is expected to be inducted into an operational area in the near future. The latest delivery marks the fourth of the five S-400 squadrons contracted under the Rs 35,000-crore India-Russia defence agreem…
Fourth S-400 delivery reaches India, deployment likely on western front
The S-400 system gained significant attention during Operation Sindoor in May 2025, when it played a crucial role in India's air defence operations by intercepting hostile aerial threats. Its performance reinforced confidence in the platform's capabilities and contributed to the government's decision to approve the acquisition of five additional S-400 squadrons, which would eventually double India's planned inventory to ten units.
India receives fourth S-400 squadron, bolstering long-range air defence capabilities
India has received the fourth of five S-400 Sudarshan air defence missile squadrons contracted from Russia, strengthening its multi-layered air defence network as New Delhi also moves to expand the system and develop the indigenous Project Kusha
Times of India
The Economic TimesFourth Sudarshan S-400 squadron arrives in India from Russia
India has received its fourth S-400 Sudarshan air defence system squadron from Russia. This advanced system significantly boosts the nation's long-range air defence. The S-400 played a crucial role in past operations. The fifth squadron is expected soon, and India is also developing its own indigenous air defence systems.
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