He won the doubles title with Rohan Bopanna at the 2017 Chennai Open, in a historic final featuring four Indian players.

He won the title with partner Rohan Bopanna by defeating a pair of compatriots, Purav Raja and Divij Sharan, in an all Indian final.

Next they defeated British pair of Jack Cash and Henry Patten in the semifinals in straight sets to reach their first ATP Tour final as a team.

He won his first Grand Slam doubles match at the 2023 Australian Open with Balaji defeating fifth seeds Ivan Dodig and Austin Krajicek as an alternate pair.

Partnering with Vijay Sundar Prashanth, Nedunchezhiyan won the doubles title at the 2024 Hangzhou Open, defeating Constantin Frantzen and Hendrik Jebens in the final.