This scene was forcibly added in the movie on the request of Vinod Khanna. For this he even reduced his fees. Madhuri was only 20years old then.
He was mesmerized by Madhuri's beauty and was so into her. During the liplock scene he lost his control & forcibly continued kissing her after the cut. The actress left bleeding after this.
Later, producer Feroz Khan paid an extra Rs 1 crore to include this scene in the movie.