Overview The Ministry of Defence (MoD) signed contracts worth Rs 858 crore on 27 March 2026 at Kartavya Bhawan‑2, New Delhi. The agreements cover the acquisition of the Tunguska Air Defence Missile System for the Army and the Depot‑Level Inspection of the P8I fleet of the Indian Navy. Key Developments Contract for Rs 445 crore with JSC Rosoboronexport for 48 Tunguska missile systems, signed in the presence of Defence Secretary Shri Rajesh Kumar Singh . Contract for Rs 413 crore with Boeing India Defense Private Ltd for depot‑level maintenance of the P8I fleet under the Make‑in‑India and Aatmanirbhar Bharat agenda. Important Facts Total contract value: Rs 858 crore. Strategic partner: Russia for missile system; United States (via Boeing) for aircraft support. Indigenous content: The P8I inspection contract is classified as Buy Indian with 100 % indigenous content. Capability boost: Tunguska adds a short‑range, rapid‑reaction layer to India’s air defence; depot‑level P8I support ensures sustained maritime surveillance. UPSC Relevance These contracts illustrate the intersection of defence procurement (GS3: Economy), strategic partnerships (GS2: Polity), and indigenous manufacturing drives (GS3: Economy). Aspirants should note: The role of the Defence Secretary in sanctioning high‑value deals. How strategic defence partnerships influence India’s security architecture. Implications of indigenous content clauses on the domestic defence industrial base. Way Forward To maximise the benefits of these deals, the MoD should: Accelerate the establishment of an in‑country MRO hub for the P8I, creating skilled jobs and reducing lifecycle costs. Integrate the Tunguska system with existing air‑defence networks for seamless command‑and‑control. Monitor technology transfer provisions to ensure genuine capacity building under the Make‑in‑India framework. Periodically review procurement costs and performance to safeguard fiscal prudence and operational readiness.