Kolkata, November 11, 2026 — The Indian Navy officially initiated Phase 1 of the pan-India coastal defence exercise, Sea Vigil 26, in West Bengal with a comprehensive operational briefing held at INS Netaji Subhas in Kolkata on November 10, 2026.

According to an official update shared by INS Netaji Subhas, the Staff Officer (Operations) to the Naval Officer-in-Charge (West Bengal) conducted a detailed session on the Coastal Defence and Security Readiness Evaluation (CDSRE). The briefing brought together joint teams representing various maritime and coastal security stakeholders across the state to align operational protocols and preparedness measures.

Exercise Sea Vigil is a flagship, large-scale coastal defence drill coordinated by the Indian Navy to assess and strengthen India’s maritime security apparatus. The exercise integrates multiple central and state agencies—including the Indian Coast Guard, Marine Police, Customs, Port Authorities, and fisheries departments—to evaluate preparedness against asymmetric maritime threats and enhance inter-agency coordination along the coastline.