He pursued his bachelor's degree in Mechanical Engineering from Kumaraguru College of Technology and completed Master of Business Administration from PSG Institute of Management.

[12][13][14] He was the second runner-up in the finale,[15] f At the start of his film career, Ashwin Kumar played a minor role in Mani Ratnam's O Kadhal Kanmani as a colleague of Dulquer Salmaan's character.

[16] The film was released on the week of Pongal 2022 and a critic with the Times of India wrote "Ashwin makes a confident leap to leading man".

[20] The film received highly positive reviews from critics and audiences upon release and Ashwin’s performance as a lawyer, a nameless saviour was widely appreciated.

A critic from Sakshi Post wrote "Ashwin Kumar as a lawyer keeps the audience on the egde of their seats in the second half with his brilliant show.

[21] He is next playing the lead in the action thriller film titled Nodikku Nodi, directed by Vijay Adhiraj alongside actors Shaam and Narain.

[27] During the audio launch of Enna Solla Pogirai, Ashwin's speech that he had dozed halfway through the narration of 40 stories due to weak scripts, stirred controversy with people calling him "arrogant" and "boastful".