Film Songs based on Ragas

Malayalam
Malayala Sangeetham: http://malayalasangeetham.info/Ragas.php
Tamil
Raaga of some Tamil Film songs: http://ed.iitm.ac.in/~raman/music1.html
Karnatic based: https://www.quora.com/What-are-some-lovely-compositions-from-tamil-movies-which-are-carnatic-based

Hindi
Chandrakantha (Alphabetical List) : http://chandrakantha.com/raga_raag/film_song_raga.html

Indianmusicpage (Alphabetical List) : http://indianmusicpage.blogspot.in/2011/02/list-of-some-film-songs-based-on-raga.html

Sulekha: http://creative.sulekha.com/a-list-of-hindi-film-songs-based-upon-classical-raagas_191237_blog

SwarGanga:  https://www.swarganga.org/hindisongs.php
 
p-sarkar.com: http://www.p-sarkar.com/Classical%20Indian%20Film%20Songs.htm

asavari:  http://www.asavari.org/songs.html
 
Wikipedia (All languages): https://en.wikipedia.org/wiki/List_of_film_songs_based_on_ragas