It was to become an art director that he boarded a train to Chennai in 1968. Seven years later, he made his debut as a director with Ulsavam. In a career that spanned over four decades, he directed blockbuster movies like Ee Nadu, Itha IvideVare, Angadi, Vartha, Devasuram, Avanazhi and Avalude Ravukal.
He also helmed several critically acclaimed films like Alkoottathil Thaniye, Kanamarayathu, Aksharangal andVadakaykkoru Hrudayam.
I.V Sasi played a key role in turning actors like Mammootty, Mohanlal, Jayan, Sukumaran, Soman, Vincent and Seema into stars.
He went on to marry Seema, who starred in several of his memorable films.