Irulum Oliyum (English: Dark and Light) is a 1971 Tamil Romantic - Drama film directed by Puttanna Kanagal. The film produced by G. S. Mani, N. Narayana Subramaniam and M. v. M. Azhagappa under producers combines. The film dialogue written by Vietnam Veedu Sundaram and story by Aryammba Pattabi respectively. Music by K. V. Mahadevan assets to the film. It stars Vanisri (played dual role) and A. V. M. Rajan played lead with S. V. Ranga Rao, Chittoor V. Nagaiah, Nagesh and Rama Prabha played pivotal role.