This song is from a rather unknown movie and is a particular favorite of mine. It found a place in most IR collections I had. The director of this movie must've realized at some point that IR handed him a fantastic tune. He puts in the 'marriage reception' type special effects on the extremely hot Jayasudha as she dances with oomph and mesmerises the lungi-clad teenagers in Thanjavur Kamala theater.
But I digress from the real point of the post. What a song and what a tune. 'mottai' seems to casually (as they say 'anaayasama') throw out a song that magically mixes a sensational voice and orchestration with a folk variant of 'omaha zeeeya' koluvai sound. 30 years later this song is still awesome.