Igatpuri is surrounded by the highest peaks in Sahyaadri i . e . Western Ghats, most of them are forts built in Satavahana dynasty.
2.
"' INS Satavahana "'is the premier Submarine Training Base of the Indian Navy and is located at Visakhapatnam, Andhra Pradesh.
3.
School of Advanced Undersea Warfare ( SAUW ) was established in Dec 2006 inside the premises of INS Satavahana, to train the crew of submarines of the nuclear submarines.
4.
Visakhapatnam is the headquarters of the Eastern Naval Command, the Naval Science and Technological Laboratory ( a DRDO Lab ), a Chief Quality Assurance Establishment ( CQAE ), an EFS office, a Naval Dockyard ( established in 1949 ) and Naval Bases including INS Virbahu, INS Karna, INS Kalinga, INS Samudrika, INS Satavahana, and INS Dega.