Port Blair is the largest town and a municipal council in Andaman district in the Andaman Islands and the capital of the Andaman and Nicobar Islands, a union territory of India. It lies on the east coast of South Andaman Island and is the main entry point to the islands. It is also the headquarters for the Indian district of South Andaman, and the local administrative sub-division (tehsil), which is also called Port Blair. It is home to several museums and a major base for the Indian Navy and the Indian Coast Guard. It is also the headquarters of the Tri Services Command.