One of my all time favourites malayalam melodious song (Sung by S.Janaki). This song is similar version in Tamil song which is "Paadi Azhaithen Unnai From Rasigan Oru Rasigai ". I also have this video song in Tamil version, and I'll upload it later.

Here the lyrics of this malayalam song:

Lyrics : Bichu Thirumala
Music : Raveendran
Singer : S Janaki

Thenum vayambum naavil thoovum vaanambaadi
Thenum vayambum naavil thoovum vaanambaadi
Raagam sree raagam padoo nee
Veendum veendum veendum veendum (thenum)

Maanathe sinkaara thoppil
Oru njaalipoovan pazha thottam (maanathe)
Kaalathum vaikeettum poombaala
Thenunnaan njana vaazha
Thottathil neeyum porunno (thenum)

Neelakkoduveli poothoo
Dhoore neelagiri kunnin mele (neelakodu)
Manjin poovelikkal koodi
Kochu vannathi pullukal paadi
Thaalam pidikkunna vaalaatti
Pakshikku thaali kettinnalle
Neeyum koodunno (thenum)