Listen to Thadakam Ondru online. Thadakam Ondru is a Carnatic language song and is sung by Nithyasree Mahadevan. Thadakam Ondru, from the album Best Of Nithyasree Mahadevan, was released in the year 1998. The duration of the song is 4:18. Download Carnatic songs online from JioSaavn.