Silvassa, also spelled Silvasa, town, administrative headquarters of Dadra and Nagar Haveli district, Dadra and Nagar Haveli and Daman and Diu union territory, western India. The town is located about 13 miles (21 km) southeast of Daman on the Daman Ganga River, some 15 miles (25 km) inland from the Arabian Sea.
It is the economic centre of the territory, which is primarily agricultural and produces rice, pulses (legumes), and fruit crops. Small-scale cottage industries include engineering and the manufacture of plastic goods. In 2006 Silvassa and the adjacent town of Amli were merged administratively to form Silvassa Municipal Council. Pop. (2001) town, 21,893; Silvassa, including Amli, 50,463; (2011) Silvassa Municipal Council, 98,265.