Mere Yaar Ki Shaadi Hai(2002)

Sanjay and Anjali are childhood chums. When Sanjay's roommate Ria declares he has fallen for Anjali, he vehemently denies it. But the truth hits him like a ton of bricks when Anjali calls to tell him that she is getting married to Rohit. Sanjay wants to win Anjali's heart at any cost and sets off on a mission to stop the wedding. Based partly on the American film "My Best Friend's Wedding" (1997).