Chashme Buddoor [1981]
Chamko detergent, does that rings a bell to you? you might never have seen this brand of detergent, however if you watched hindi movies on doordarshan in early 90's you cant miss this brand.
This is kinda identification for the movie: Chashme Buddoor (1981). Farooq Shaikh, Deepti Nawal.
A very simple Middle-of-the-road movie.