Barren Volcano is only active Volcano not only in India but in South Asia. It is located on Barren Island in Andaman Sea. It is part of Andaman Islands, but uninhabited by humans as latest eruption was in 2017 only.
It is located 138 km from Port Blair, capital of Union Territory of Andaman and Nicobar Islands. One can also visit the island after taking required permissions from Forest Department in Port Blair.
Photo credit: www.andamans.gov.in