Sri Vijaya Puram, Nov. 21: The fourth edition of pan India Coastal Defence Exercise 'Sea Vigil-24' was conducted by Headquarters Andaman and Nicobar Command from 1321 Nov 24 for Andaman & Nicobar region. The aim of the exercise was to comprehensively validate the efficacy of the Coastal Defence response across the Andaman & Nicobar region against threats arising from the sea whilst catering for latest developments in technology and tactics in maritime warfare. In addition, the exercise aims to sustain a balanced focus between Coastal Defence and Coastal Security in the islets. The desired outcome of the exercise was to assess own readiness state and identify gaps (if any) in the existing defence mechanism. Interagency coordination was also assessed by activation of the complete Coastal Defence Mechanism.