Aged fourteen, Suja was selected to portray the leading role in the coming-of-age, romantic drama Plus Two (2002) after being recommended to the film's director Ramana by her neighbour Rajarajan, who was a cinematographer.

In 2004, Suja was offered a chance to perform in a dance number in the Srikanth–starrer Varnajalam (2004), which she accepted, prompting several other film makers to approach her for similar roles.

Amidst several appearances in single songs, Suja had the opportunity to portray minor supporting roles in films including A. K. Lohithadas's Kasthuri Maan (2005) and Masala (2005).

The director of Kuselan, P. Vasu, supported her move and cast her in two of his subsequent films – the Kannada horror-comedy Aptharakshaka (2010) and its Telugu remake, Nagavalli (2010).

[citation needed] She has finished her commitments for films including the Arulnithi-starrer Iravukku Aayiram Kangal, Thamira's Aan Devathai, Arun Vijay's Vaa Deal and Sathru among other projects.