K. J. Yesudas was given a big break in the film ''Kathalikka Neramillai'' in 1964 by Vishwanathan and Ramammoorthy. Later Ramamoorthy used him for the hit song ''Vasantha Kalam Varumo'' in the film ''Marakka Mudiyuma'' in 1965.But Viswanathan started working with him again only in 1973 after a long gap at the insistence of M. G. Ramachandran in the film 'Ulagam Sutrum Valiban'. Yesudas then continued to be voice of M.G. Ramachandran in many films like in Nalai Namathe, Urmaikural, Sirithu Vazha Vendum etc., in Viswanathan's music.
