India’s five-regiment S-400 Triumf contract with Russia remains firmly on track for completion in 2026, with deliveries of the fourth and fifth regiments scheduled for June and November respectively, Sputnik reported. 

Rosoboronexport has confirmed there are no delays, underscoring Moscow’s commitment to fulfilling its obligations despite earlier disruptions linked to the Ukraine conflict.

Russia’s defence-export agency Rosoboronexport has reiterated that there are no deviations in the delivery schedule for India’s S-400 contract. CEO Alexander Mikheev told Sputnik that the five-regiment deal will be completed by the end of 2026, aligning with India’s operational requirements.

The contract, signed in 2018 and valued at approximately ₹45,190 crore, covers five full regimental sets of the advanced long-range air defence system. Three regiments have already been inducted between 2021 and 2023, deployed across northern and eastern sectors including the Sikkim corridor.

The fourth regiment began delivery in June 2026, with acceptance trials completed in Russia earlier in April. The fifth and final regiment is scheduled for November 2026, ensuring full induction by year-end.

The systems delivered include the 91N6E radar capable of detecting aerodynamic targets at ranges up to 570 km, the 92N6E multifunctional guidance radar, 96L6E altitude detectors, and up to 12 transporter-launchers.

The missile inventory comprises the 40N6 with a 400 km range, the 48N6DM with 240 km, the 9M96E2 with 120 km, and the 9M96E with 40 km. Together, these provide India with a layered capability against aircraft, stealth platforms, ballistic missiles, cruise missiles, and drones.

Known in Indian service as Sudarshan Chakra, the S-400 has already demonstrated its battlefield utility during Operation Sindoor against Pakistan, where it intercepted hostile aircraft and missile threats in real time. Its deployment has significantly strengthened India’s deterrence posture against both Pakistan and China.

India’s Defence Acquisition Council has also approved the procurement of five additional regimental sets in March 2026, part of a larger package worth nearly ₹2,08,000 crore. This expansion would potentially double India’s S-400 strength to ten regiments. In February 2026, the council sanctioned an urgent delivery of 288 missiles valued at about ₹8,300 crore, including short-, medium-, and long-range variants to replenish stocks.

Despite U.S. sanctions threats under CAATSA, India secured a waiver recognising its indispensable role as a strategic partner. Washington acknowledged the S-400’s importance in deterring China, allowing the deal to proceed without penalty.

The induction of all five regiments by 2026 will enable India to integrate the S-400 with indigenous systems such as Akash and MRSAM under Project Kusha, creating a nationwide Extended Range Air Defence System.

This integration, managed through the Indian Air Command and Control System, will allow coordinated firing and seamless data sharing between imported and indigenous platforms.

Strategically, the timely completion of the S-400 contract enhances India’s layered air defence shield, fortifies its deterrence posture, and signals the resilience of India-Russia defence ties. The deployment of the fourth regiment in Rajasthan along the western frontier further strengthens India’s operational readiness against Pakistan.

Agencies