Dhoop Chhaon was a 1935 Hindi movie directed by Nitin Bose. It was the first Hindi film to use playback singing. Before this, film makers did not use playback singers and the original actors and actresses sang their own songs. Curiously, actors were chosen specifically for their singing abilities. Nitin Bose came up with the idea of playback singing and he discussed this with music director R C Boral and his brother Mukul Bose, who was also the sound recordist in New Theatres, Calcutta. And it worked in a big way. From then on, the system of playback singing was introduced in Indian films.
K L Saigal - Andhe Ki Lathi :
K C Dey - Baba Man Ki Ankhen Khol :
K C Dey - Teri Gathri Mein Laga Chor :
Pahadi Sanyal & Uma Shashi - Mere Prem Ki Naiya :
Pahadi Sanyal and Uma Shashi were also the main actors in the film.
Partial list of the legends of yesteryears and some blockbusters of that period. Do not feel disheartened if your favourite singer or movie is not in the list. This is not the complete list. These are old screenshots. My vintage songs collection has multiplied manifold since then. The list is first arranged decade-wise and then in alphabetic order. Scroll each column vertically to get the right glimpse.
You may refer to this list if you want me to post specific songs. Feel free to point out the errors in the list if you find any. Thanks.