Having an interest in theatre and acting, Vega participated in theatre plays throughout her childhood and school. After having completed her education, she pursued professional theatre in
Mumbai, when
Swanand Kirkire met her and cast her as the female lead in his Hindi musical
Aao Saathi Sapna Dekhein, for which she along with the rest of the cast was awarded the META (Mahindra Excellence in Theatre Award) for Best Ensemble in 2009. Afterwards, she got the opportunity to meet
Venkat Prabhu and T. Siva, director and producer of the 2008 Tamil film
Saroja, who, impressed of her acting and attitude, immediately decided to cast her in the film in the title role, by which she stepped into the
Indian film industry. The film was critically acclaimed and went on to become successful at the box office, with critics claiming Vega's performance was "apt" for the role. Subsequently, she was selected by prominent film maker
Sasikumar to feature in his next production,
Pasanga, after he had seen her portfolio. The film, based on children, upon release, became described as a "masterpiece" by critics, and went on to win two
National Film Awards amongst notable regional awards. Vega's performance as a young village kindergarten teacher also received rave reviews, being dubbed as "excellent", despite claims by her that the role was diametrically opposite from her real life. She made her debut in Hindi films with the small budget coming-to age story of a girl with
Aamras, though the film went unnoticed. In 2009, she appeared in a Telugu language film,
Happy Happy Gaa with
Varun Sandesh and
Saranya Mohan, which won good reviews by critics with a reviewer citing that Vega was the "surprise package" of the film. Vega's next release was the multi-starrer
Vaanam also featuring
Silambarasan,
Bharath and
Anushka, amongst other notable stars. Playing the role of a strong-headed rock musician with a military background, Vega has insisted that the role is very close to her real life persona. Vega then starred in
Chittagong, a period film based on the
Chittagong armoury raid of 1930. The film features her in the historical character of
Pritilata Waddedar, a freedom fighter and was premiered in film festivals before a commercial release on 12 October 2012. Vega was also an executive producer on
Chittagong. The film won four
National Awards. Vega's then starred romantic comedy film
Amit Sahni Ki List has her opposite
Vir Das. In 2019, Vega appeared in the hugely popular series
Metro Park alongside
Ranvir Shorey,
Omi Vaidya,
Purbi Joshi and Pitobash. This was a runaway success and she also appeared in the second season of the same series for
Eros Now. The show is directed by
Abi Vargese and
Ajayyan Gopal and produced by Giju John. == Producer ==