Well this is going to be a mixture of Tam and hindi songs.
But all the people who dont know tamil dont worry, love for music transcends all languages.
My favs are
a) Azhage sugama [Parthale Paravasam]
A beautiful song set in the raag Sahana makes you feel the sorrow ofVibralambha sringar [for the hindi folks] or the sorrow of seperation from the beloved. My favorite.
This song is best enjoyed alone. looking out from the balcony.It touches ur heart somewhere.
b) E- ajnabi [Dil Se]:
Do I need to say more about this soulful song?
c) Dhim tanana [Rythm]
This song is a masterpiece both in tunes and in lyrics, in which a water is personified into a woman
d) China chinnai asai or dil hai chotasa [Roja]
The song that catapulted Rehman to stardom
e) Hai rama / Pyar yeh [Rangeela]
No words to describe these lovely songs. His first only hindi film
f) Alaipayudhe- Pachai nirame / [Sathiya. in hindi]
A long song. But you never feel the song sagging at any point.
g) Bar Bar ha. [Lagaan]
h) Yeh jo des hai tere [Swades]
I get goose pimples when I listen to these songs. Rehmans voice is out of the world.
i) Muthal murai killi parthen [Sangamam]
The lyrics won the national award. The music too should have won. But I guess rehman was winning too much for them:)
I really wanted to put many songs but one won hands down for the last position
j) Vellai pookal - [Kannatil mutham ittal]
Mani and rehmans combi- Need I say more. I cant help getting tears in my eyes. This was composed for the scenario of the Lankan war - Let peace dawn.
It was difficult. But I made a choice. If anything is missing then please feel free to put it in the comments.