He went on to represent India at the 2013 Summer Deaflympics which was also his first Deaflympic appearance, but he did not win a medal. Prithvi was selected to compete for India at the 2017 Summer Deaflympics as India sent a delegation consisting of 46 participants for the multi-sport event (the largest number of athletes sent by India to a single Summer Deaflympics). Prithvi Sekhar along with Jafreen Shaik claimed a historical bronze medal in the mixed doubles at the 2017 Summer Deaflympics, marking India's first ever Deaflympic medal in tennis.