Listen to Thendralathu Unnidathil online. Thendralathu Unnidathil is a Tamil language song and is sung by M. S. Viswanathan, P. Jayachandran and S. Janaki. Thendralathu Unnidathil, from the album Antha 7 Natkal, was released in the year 1981. The duration of the song is 4:53. Download Tamil songs online from JioSaavn.