This song compels me to sing along, especially the aalaapanai followed by the SGRM GRSN SNPM PNSGR (sung by Raaja I believe) in the interlude. Unfortunately my singing is the numerical approximation to Raaja's and Jesudas' closed form solution. While there is the semblance of soul, the structure is so weak that it seems bereft of all the nalinam of Nalinakanthi. The frustration provided by ones own mediocrity is endless.
S.Janaki's rendition is, without doubt, spotless. But much more on her swara-play in another post.