Dastak (English: Knock) is a 1996 Hindi language Indian feature film directed by Mahesh Bhatt, starring Sushmita Sen in her debut film supported by Mukul Dev with Sharad Kapoor as the psychopath.

Raju, a businessman who had been orphaned as a child finds out that he is the illegitimate son of a wealthy business owner; he goes to London to connect with his father, and there meets Sonia, whom he believes may be the love of his life.