Rambilli

INS Varsha, an Indian Navy's naval base in Andhra Pradesh state under Project Varsha to house India's nuclear submarine fleet, is being developed and expanded in phases at Rambilli 50 km (31 mi) south of Visakhapatnam, the headquarters of the navy's Eastern Naval Command. While the crew belongs to the Indian Navy, operational control resides with the Strategic Forces Command in Delhi. Arihant-class nuclear submarines will be based at INS Varsha. The naval bases lies on the confluence of Sarada and Varaha rivers. It is designated as Naval Operational Alternative Base (NOAB).