Kanchan Mattu

Do Posti is a film released in 1981, it is an Indian Punjabi film

Kalyani lives in a small tenement with three sons, Vijay, Nandu, and Bhola, all of whom are unemployed, slackers and trouble-makers. One day Nandu gets into serious trouble with Shantilal, who summons the police, and has him arrested. Kalyani goes to the Police Station to plead with the In-Charge Officer to release Nandu, to no avail. She then goes to Shantilal to try to persuade him to withdraw the charges, also to no avail.

A runaway bride promises her dying widowed friend that she will assume her identity and look after her infant child.