He got a breakthrough role as an antagonist in Tamil cinema industry with the R.K. Selvamani directorial Captain Prabhakaran (1991) starring Vijayakanth which became a blockbuster, fetching him a lot of acting opportunities.
He has worked in a large number of films directed by R. K. Selvamani in his career such as Captain Prabhakaran (1991), Chembaruthi (1992), Athiradi Padai (1994), Kanmani (1994), Raja Muthirai (1995), Makkal Aatchi (1995), Arasiyal (1997), Kuttrapathirikai (2007) and Pulan Visaranai 2 (2015).
At the 1999 Indian general election in Tamil Nadu, he contested from Periyakulam as a candidate of the Puthiya Tamilagam (PT), he secured about one lakh votes and finished at the third position.
[5][6] At the 2009 Indian general election in Tamil Nadu, he stood as an independent candidate and the opposition pressed criminal charges against him for moving around in a vehicle with a propaganda banner breaching the moral conduct code.
Khan was arrested in July 1998 for causing a roadblock and obstructing traffic while protesting against the pirate showings of his film Vettu Onnu Thundu Rendu (1998) on cable television.
His activity led to film distributor Chinthamani Murugesan releasing a press statement condemning the television's actions and prompted a shut down of cinema halls across Pondicherry for one day.
Later, in 2012, the Madras High court found the woman had made false accusations against him and ordered her to pay Rs 50 lakh as damages to the actor for malicious prosecution and defamation.