Dulhan Wahi Jo Piya Man Bhaaye (1977)

As his dying wish, Seth, a wealthy businessman, is determined to meet the love of his grandson and heir, Prem. Unfortunately, Prem's girlfriend, Rita, is detained on out-of-town business, so the young man hires Kammo to play the part. Prem receives his grandfather's blessing on the union, but when Rita returns to unveil the truth, Seth stands by Kammo as his final choice. Now, Prem either must return to Rita or trust his grandfather's decision.