Evergreen Romantic Song from the 1960s

This is an evergreen romantic song from the 1960s. The movie is Selvamagal starring Jaishankar, Rajashree and others and the music has been composed by the one and only MSV. Recently the entire Tamil Movie Industry came together and honoured the octogenarian (Thank God!). Excellent rendition as usual by the two greats TMS and P Susheela has made the song a Timeless Classic! Contrary to the popular belief, this meaningful and well crafted song has been written by Vaali and not Kannadasan. But Kannadasn has written two other songs in this movie. Enjoy the song.