One tune, two songs....Salil Chowdhury...This beautiful song of Annadata is excerpted from Non-film Bengali song sung by Sabita Chowdhury...Link in First comment box
One tune, two songs....Sachin Dev Burman....This famous song of 'Pyaasa' is originally taken from non-film Bengali song sung by SD himself......Link in First comment box
Nishdin, Nishdin...Salil Chowdhury
https://www.youtube.com/watch?v=q7ZnGb5ceHA
One tune two songs...Salil Chowdhury...Ene ene de jhumka
One tune, two songs...Hemanta Mukhopadhay...
Ami dur hote tomarei dekechhi http://www.youtube.com/watch?v=O7dzdXOJhdI
Mere baat rahi mere mann mein http://www.youtube.com/watch?v=KvnetLDBTyw
One tune, two songs...Madan Mohan
Another by Talat Mehmood... http://www.youtube.com/watch?v=xQCMe6ZDifs
Sachin Dev Burman...Dheere se jana bagiyaan mein...http://www.youtube.com/watch?v=UtGXt102cl8
Nishithe jaiyo phoolobone... http://www.youtube.com/watch?v=_MX_Hw2Cuxc
And a tune alike...though a comic song...http://www.youtube.com/watch?v=7-fDqHHw0kM
One tune, two songs...after some sound alike from Regional song and its Hindi version...here comes the twins from same language...
One tune, two songs...Hemanta Mukherjee
One tune, two songs...original in Marathi...
Famous Holi song...http://m.youtube.com/watch?v=6MNxrueCOCg
One tune, two songs...Hemanta Mukherjee...
Kahi door jab din dhal jaye