Qayamat Se Qayamat Tak

Traditional rivals, both in business and underground activities, Randhir Singh and Dhanraj Singh, are faced with a dilemma - namely their children, Rashmi and Raj, are in love. Both openly declare their opposition to this love, and will do anything in their power to prevent the two from meeting, leave alone marrying each other. Raj and Rashmi must now decide to fall in line with their respective dads' wishes, or incur their wrath by eloping.

Qayamat Se Qayamat Tak, sometimes called QSQT and released in 1988, is an Indian Bollywood film written by veteran producer/director Nasir Hussain and directed by his son Mansoor Khan. The film starred Hussain's nephew, Aamir Khan, along with Juhi Chawla in their first major roles. It is often wrongly believed to be the debut film for both actors. However, Aamir Khan had earlier appeared in a small role in Holi (1984), and Juhi Chawla in Sultanat (1986). Upon release, the film became a box office hit and shot its leading stars to fame overnight. The film was also the first major hit for the music-director duo of Anand-Milind and singer Udit Narayan.

Source: Wikipedia