Kakkakuyil (2001)

Sivaraman has come to Mumbai in search of Govindan Kutty who has offered him a visa. But Sivaraman finds Govindan amidst a sea of problems. And Sivaraman is forced to participate in a bank robber planned by Thomas and his gang, which leaves them homeless. And they find a place in the house of a blind old couple, who grandson Kunjunni had left them a long time ago(when he was 7) and is now coming home. But a turn of events finds Sivaraman and Govindan kutty (combined) as Kunjunni with the body of Govindan kutty and sound of Sivaraman.