Silvassa Pronunciations; is the capital of the Indian Union Territory of Dadra and Nagar Haveli. During the Portuguese rule, Silvassa was also known as Vila de Paço d'Arcos. A major attraction, it is about 10 km from Silvassa. The 20 acre land is basically part of Dadra & Nagar Haveli Wildlife sanctuary. The park is known as the home of Asiatic lions.