[5] He won the national singles title for the fourth time by winning the Men's final of Fenesta Open tennis Championship on 8 October 2016[6] Vishnuvardhan's father Mr Jagadeesan is a businessman.

Vishnuvardhan was considered a promising prospect for Indian tennis, representing the next generation of the sport in the country and succeeding Leander Paes and Mahesh Bhupathi.

He has represented India in the Davis Cup and was part of the team that defeated Uzbekistan and Philippines en route to qualifying for the World Group.

[10] Vishnu and partner Leander Paes crashed out of the Olympic doubles after a 7–6 (7/3), 4–6, 6–3 defeat against French Jo-Wilfried Tsonga and Michaël Llodra.

[11] Vishnu won the national singles title for the fourth time by winning the Men's final of Fenesta Open tennis Championship on 8 October 2016, by defeating left-hander Siddharth Vishwakarma from Varanasi 6–3, 6–4.