Dulha Mil Gaya is a film about relationships and the changes that happen in people's lives when they fall in love. Tej is a wealthy man who likes women but does not intend on getting married.He has a friend who is a model Shimmer and she is in love with a man deeply and does not intend to get married.
Tej has to marry a woman to own the company so he marries Sammarpreet. Tej go away for 3 months and doe not contact his wife so Sammarpreet decided to go to where he lives. When she reaches there she sees her husband kissing another girl. She then sadly walks on the road and get hit by a car. She rolls down a hill and stopped at another road where Shimmer finds her.
Shimmer realises that Tej has married and she did not want to leave Sammarpreet in that situation. Shimmer gives Sammarpreet a makeover and Tej falls in love with her not knowing she is his wife.Then it is later revealed that Sammarpreet is his wife and Shimmer gets married to the man she loves who is Pawan.