Ilavarasi had talent, but she never used it very well in all her movie, her dialogue delivery, nuances were the same in every movie she appeared. However, Ilavarasi gave an excellent and meaningful performance in Visu’s Samsaram Adhu Minsaram. She also did a good role in a Malayalam movie ‘Hitler’ in 1996 with Shobana and Mammootty, which was the biggest grosser in Mollywood. Ilavarasi made a debut with ‘Alaya Deepam’, a 1984 Tamil feature film which had Sujatha and Rajesh in the lead roles. She got to play a supporting character in the film. She acted with Chandrasekhar in 'Oomai Vizhigal', which was a blockbuster. She was also seen playing Karthik’s wife in ‘Aval Sumangalithan, a 1985 Tamil drama film directed by Visu. She appeared in a film ‘Kuva Kuva Vaathugal’, a 1984 Tamil Indian feature film which had Sivakumar, Sulakshana, Pandiyan in lead roles. Her first half-a-dozen film where she acted as leading lady had stars like Murali, Pandiyan,
, K.S.G. Venkatesh or Chandrasekhar. Since she did not have a star power and never even have acted with popular actors, she became the most underrated actress.
She also started acting in Telugu and Kannada movies, where she landed up getting only supporting actress role. In 1984, she appeared in K.Bhagyaraj’s film ‘Dhavani Kanavugal’ which had thespian
playing a lead role. This actress wanted to act in author-backed roles and never did any glamorous character. She did not even have the pressure of essaying or playing a leading lady or being glamorous. She quit acting after Dil, 2003 released film. It is true nobody has the answer why she quit films. But she is one actress who had a good script sense and did films that she wanted to do in her time. She was most comfortable doing Visu or Bhagyaraj films. As long she had been working in Tamil, Telugu and Malayalam movies she was comfortable with any director or actors, there was no other issue.