No words to describe the melody that "Kooda varuviya" oozes. Voice of Bela Shende certainly adds right amount of honey to the melody (pronunciation needs touch up). I just loved the structure of the first interlude. Those flute (or some flute like synth) that follows the first two lines of charanam is a good touch too. Interesting to note that IR has used chorus only in the second charanam (after second line).
thanks,
Krishnan