A large team of security personnel, comprising 5,000 policemen, Indian Navy officials, Coast Guards, personnel from CISF and Fisheries department, yesterday initiated Operation Sagar Kavach, a mock drill to check preparedness of the city’s defence machinery to curb terror attack or entry of terrorists via sea.

Eyes peeled: Two police officials scan the sea on Day 1 of Operation Sagar Kavach at Girgaum Chowpatty yesterday. Pics/Bipin Kokate