Classical music is not as commonly featured in Indian films as the other three genres.

Mohammed Rafi is widely regarded as the 'father of Indian playback singing' due to his immense contribution to the field.

A.R. Rahman is known for his innovative approach to music composition, often blending Indian and Western elements to create unique soundscapes.

While the other three films are known for their memorable soundtracks, 3 Idiots' music is generally considered less iconic.

The song 'Jai Ho' from the film 'Slumdog Millionaire' won the Academy Award for Best Original Song in 2009.

While the other three themes are commonly explored in Indian film songs, social issues are less frequently addressed.

Ilaiyaraaja is known for his extensive use of Carnatic music elements in his film compositions.

Lagaan is not known for its use of Western classical music, unlike the other three films.

The song 'Ek Ladki Ko Dekha Toh Aisa Laga' from the film '1942: A Love Story' is considered one of the longest-running songs in a single shot.

A.R. Rahman is known for his pioneering use of electronic music in Indian film compositions.

Kuch Kuch Hota Hai is not known for its use of traditional folk music, unlike the other three films.

R.D. Burman is known for his extensive use of Hindustani classical music elements in his film compositions.

Dilwale Dulhania Le Jayenge is not known for its use of Sufi music, unlike the other three films.

R.D. Burman is known for his innovative use of jazz elements in his film compositions.