Here is another version of the kavuthuvam, I came accross. very recently.
http://www.youtube.com/watch?v=k6LcSvLRAnw
Shows Bramha santhi in Amrithavarshini..
I thought it was originally in Madhyamavathi . (There is a reference to Madhyamavathi gitam in the lyrics I have)
But there is a megha raga Pann reference in the santhi.
What is the equivalent of Megha raga punn?