Nahapana had a son-in-law named Ushavadata (Sanskrit: Rishabhadatta), whose inscriptions were incised in the Pandavleni Caves near Nasik. Ushavadata was son of Dinika and had married Dakshamitra, daughter of Nahapana. According to the inscriptions, Ushavadata accomplished various charities and conquests on behalf of his father-in-law. He constructed rest-houses, gardens and tanks at Bharukachchha (Bharuch), Dashapura (Mandasor in Malva), Govardhana (near Nasik) and Shorparaga (Sopara in the Thana district). He also campaigned in the north under the orders of Nahapana to rescue the Uttamabhadras who had been attacked by the Malayas (Malavas). He excavated a cave (one of the Pandavleni Caves) in the Trirashmi hill near Nasik and offered it to the Buddhist monks.