Taal (1999)

Manav, the son of a wealthy NRI falls in love with Mansi, the daughter of a poor but respected music teacher. Their relationship is mocked by Manav's family, humiliating Mansi due to her social status. Enters Vikrant Kapoor, a record producer who not only discover Mansi's knack for singing and dancing but helps Mansi climb the ladder of success, eventually becoming a singing sensation throughout India and globally. Manav discovering the ill treatment his family gave to Mansi tries to make amends but is met with two obstacles. One being Mansi ignoring him, and two being Vikrant, who has also developed feelings for her and wants to marry her.