

She portrayed a medical student, who does not notice her classmate's love for her, throughout the entire film.

Thyagarajan to become an actress, and she obliged, crediting the professional approach and continued determination of the film's team to sign her on. Despite her initial apprehensions, she was convinced by film producer T. In 1991, soon after finishing college, Heera accepted to play the lead female role in Kathir's Tamil romantic drama film Idhayam. She also later rejected an offer from filmmaker Subhash Ghai, who had attended one of her modelling assignments. She first received a film offer on a family holiday at Gulmarg in Kashmir, where a producer had approached her to play the body double for Tina Munim. Heera was initially not keen for a career in films and turned down initial approaches for roles by film directors. She also briefly worked as an encycopaedia-seller, a hotel worker and a model coordinator in her days as a student. During her time in college, Heera was approached to model for print magazines and she took on the opportunities for financial independence. She later pursued a degree in psychology at Women's Christian College, Chennai. As a military brat, Heera shifted to schools across different states in India every few years.
