After making her breakthrough portraying Draupadi in the TV series Mahabharatham and hosting shows such as Surya Vanakkam on Sun TV, she has gone on to appear in supporting roles in feature films.
[1] Nisha started her acting as a college student in Vijay TV's Kana Kannum Kalangal Kalloriyin Kadhai and later appeared in Saravanan Meenatchi as Thenmozhi.
[2] As a media student, she was actively involved in short film-making during her education and collaborated with them when making the films Bench Talkies - The First Bench (2015) and Chennai Ungalai Anbudan Varaverkirathu (2015).
[3] Nisha Krishnan got engaged to actor Ganesh Venkatraman in February 2015, and the pair got married on 22 November 2015.In June 2019 she gave birth to their first child Samaira.
[4][5][6] On 3rd October 2023, the couple had their 2nd child,a baby boy named Amar.