Could anybody help me with this song!

[Mano]

Recently I happened to hear a devine song-I have written below the first 2 lines. Could any body tell me who had sung this song and in which album this song remains? The song is so enchanting and melodious!
"punnai mara nizhalil-
antha pokkiri kannanai paar raathe!
unnai mayakka kuzhal pidiththu
oothukiraan thirudan -Raathe!

[Lakshman]

The song is from a dance music cassette. The singer is Ranganayaki Jayaraman and the song is is Anandavalli.
The cassette is available for Rs. 50.00 from Shri Saraswathi Gana Nilayam ( I presume, in Chennai) or from a retailer.