Thenali (2000) as Panchabootham's assistant.Unnidathil Ennai Koduthen (1998) as Selvam's friend.He has also appeared in supporting roles in films such as Thulluvadho Ilamai (2002). Khanna has acted in notable roles in films such as Padayappa (1999), Friends (2001), Unnai Ninaithu (2002) and Villain (2002). Only after, director Vikraman introduced him as comedian in Unnidathil Ennai Koduthen (1998), he came to limelight. He later started working on a film titled Genius in 2000, but the project eventually was shelved.

The film was revived under new title Thodarum with new cast involving Ajith Kumar, Heera and Devayani. Jayaram's falling popularity meant that Ajith Kumar was signed to replace him, while the actor requested that a change of lead actress. The remake was initially titled as Maa Vilakku and was supposed to star Jayaram and Meena in lead roles, but went through cast changes. Ravikumar was meant to remake the Telugu film Maavichiguru (1996) starring Jagapati Babu and Aamani into Tamil for Sridevi Movie Makers, but his busy schedule meant that he recommended Ramesh Khanna to the producers. He became assistant to directors Karaikudi Narayanan, Pandiarajan ( Aan Paavam), Kodi Ramakrishna, Vikraman ( Poove Unakkaga, Suryavamsam, Unnai Ninaithu and Priyamana Thozhi) and K.S.Ravikumar. Manohar's drama troupe from the age of 5 as child artist more than 1000 dramas up to his age of 10 and was appreciated by Sarvepalli Radhakrishnan, President of India at that time. Khanna was born in Chennai and third child to the family.

Rajesh khanna movie list wiki