India to Receive Fourth S-400 Air Defence System from Russia by Mid-May

India is set to receive its fourth S-400 Triumf air defence system from Russia by mid-May, according to a report by Hindustan Times citing authoritative sources. The system, which was shipped last week following a pre-dispatch inspection by officials of the Indian Air Force, is expected to be deployed in the Rajasthan sector to bolster India’s missile defence posture along the western frontier.

The delivery comes close to the anniversary of Operation Sindoor, during which the S-400 system reportedly demonstrated significant operational capability. According to the report, India fired 11 long-range missiles from the system, successfully neutralising multiple aerial threats, including fighter aircraft, airborne early warning systems, and transport planes.

The fifth and final system under the existing contract is expected to be delivered by November this year. In parallel, the Indian government has approved the procurement of five additional S-400 systems, signalling a substantial expansion of the country’s long-range air defence network. With a strike range of up to 400 kilometres, the system is capable of targeting aerial threats deep within hostile territory, including areas east of the Indus in Pakistan.

To further strengthen operational readiness, India is also planning to procure approximately 280 short- and long-range missiles to replenish stocks utilised during Operation Sindoor and to maintain a strategic reserve. Additionally, the government is exploring the establishment of a maintenance, repair and overhaul (MRO) facility with private sector participation, with potential provisions for technology transfer under consideration.

As part of a broader air defence modernisation strategy, India is also in discussions to procure at least 12 Pantsir-S1 systems from Russia through a government-to-government arrangement. A further 40 units may be manufactured domestically under the Make in India programme, aimed at enhancing capabilities against drones and loitering munitions.

Earlier this year, the Defence Acquisition Council (DAC), chaired by Defence Minister Rajnath Singh, granted Acceptance of Necessity (AoN) for defence procurement proposals worth approximately ₹2.38 lakh crore. These included the acquisition of additional S-400 systems, medium transport aircraft, and remotely piloted strike platforms.

According to reports citing ANI, the S-400 system is designed to counter long-range aerial threats targeting critical infrastructure, underscoring its strategic importance in India’s layered air defence architecture. The induction of new medium transport aircraft is also expected to replace ageing fleets such as the Antonov An-32 and Ilyushin Il-76, thereby enhancing operational airlift capabilities.

For the Indian Army, the DAC has approved several key systems, including the Dhanush artillery gun, Air Defence Tracked Systems, and Runway Independent Aerial Surveillance Systems, aimed at strengthening battlefield firepower, surveillance, and communication capabilities.

In a broader push towards defence modernisation, officials noted that in FY 2025–26, the DAC has cleared 55 proposals amounting to ₹6.73 lakh crore, with capital procurement contracts worth ₹2.28 lakh crore already signed—the highest-ever level in a single financial year. The approvals also extend to the Indian Coast Guard, including the acquisition of heavy-duty air cushion vehicles to support coastal patrol, reconnaissance, search and rescue, and logistics operations.