While still in college, she began anchoring television shows. She was then offered an opportunity to act in the
Doordarshan serial
Kanavugal Ilavasam, which led to her landing a role in the mystery series
Marmadesam by
Naga. She was introduced in
Ramany vs Ramany Part 02, which was also directed by
Naga. Devadarshini became part of the series' second installment,
Vidathu Karuppu, which she considers a "big turning point" in her life as it established her in the industry. She is still on the small screen with
Athipookal and
Idhayam. Pointing out the difference between films and serials, she says, “Our performance would be lauded in films despite a poor performance by the co-star, whereas the entire scene would be criticised in such a scenario in serials as timing is more important on the small screen. After
Muni 2: Kanchana (2011), she was continuously doing humorous characters. In 2015, she won the Tamil Nadu State Film Award for Best Comedian for
36 Vayadhinile and
Thiruttu Kalyanam. She received a lot of recognition and positive feedback for her role in ''
'96'' (2018). In the series,
The Family Man (Season 2), Devadarshini played a Tamil-speaking police officer based in Chennai. Her performance received positive responses from critics following the show’s release. == Personal life ==