Biwi No.1 is a 1999 Bollywood comedy film directed by David Dhawan. It stars Salman Khan, Karisma Kapoor, Sushmita Sen, Anil Kapoor and Tabu. Saif Ali Khan has a special appearance. It is remake of the 1995 Tamil film Sathi Leelavathi. Biwi No.1 was the biggest Bollywood hit of 1999. Prem (Salman Khan) is a man who is married to Pooja (Karishma Kapoor) with two kids. He gets involved in a roaring affair with an aspiring model, Rupali (Sushmita Sen). He prefers her to his wife because Rupali is modern and wears fashionable clothes. On Karva Chauth, Pooja discovers him at Rupali's house and asks him to choose between his mistress and her.Wikipedia