Utána:

Genre conventions of a Bollywood movie (wikipedia):

Bollywood films are mostly musicals, and are expected to contain catchy music in the form of song-and-dance numbers woven into the script. A film's success often depends on the quality of such musical numbers. [...]

Bollywood plots have tended to be melodramatic. They frequently employ formulaic ingredients such as star-crossed lovers and angry parents, love triangles, family ties, sacrifice, corrupt politicians, kidnappers, conniving villains, courtesans with hearts of gold, long-lost relatives and siblings separated by fate, dramatic reversals of fortune, and convenient coincidences.