This song "neeraaduvaan" by KJY is from the movie NakakshathangkaL. The composer of the movie - Bombay Ravi - is a true fan of raga mohanam. He tuned 3 songs in the same raga in that movie. A detailed writeup by me on Bombay Ravi adn thsi particular song can be found here:
A year back when I was listening to this song, I was so inspired that I chose to give a raw try on the aalaap. That is what you hear today.