Kalaiharasan Letchumanan  Kalaiharasan a/l Letchumanan (born 17 March 1996) is a Malaysian professional footballer who plays as a defender for Malaysia Super League side Negeri Sembilan. Kalaiharasan began with Negeri Sembilan. He was moved into the club's senior team for the 2018 Malaysia Super League. His professional debut arrived on 3 February in the Super League, he played the full ninety minutes of a 1–0 loss to PKNP. In June 2017, Kalaiharasan was called up by the Malaysia U22s for friendlies in China.