SYNOPSIS

The film you are likely referring to is Anokha Pyaar (Hindi title for the Malayalam film Balyakalasakhi), a 2014 romantic musical drama that stars both Mammootty and Seema Biswas. 

Film Details
Title: Anokha Pyaar (Hindi dubbed version) or Balyakalasakhi (Original Malayalam version).
Release Year: 2014.
Director: Pramod Payyannur.
Starring: The lead cast includes Mammootty (in a double role), Isha Talwar, Meena, and Seema Biswas.
Synopsis: The story revolves around the pure love story of Majeed (Mammootty) and Suhra (Isha Talwar) from their childhood. Seema Biswas plays the role of Selvi, a woman who helps Majeed when he is stranded in Kolkata.