37 years ago

Also this nugget from the movie’s Wikipedia page:

It was the first Hindi film for South Indian singer S. P. Balasubrahmanyam; the music directors (Laxmikant-Pyarelal) were initially against including him, feeling that the “Madrasi” would not do justice to a Hindi composition, but Balachander cited that if the lead character played by Haasan could not speak Hindi well, then even if Balasubrahmanyam blemished the song, it would “capture the character.”