Hailing from a family of musicians, S. Mahathi is a child prodigy. Her father Sri. Thiruvaiyaru . P. Sekar, a Vocalist is a disciple of Padmavibhushan Dr. M. Balamurali Krishna. Mahathi, started identifying Classical Ragas at the tender age of 1 1/2 years. She has been awarded the scholarship for Classical Music from the Central Government of India in the year 1994. At Trichur she began to sing in various Devotional Cassettes. She gave few hits by singing in some of the Tamil and Malayalam movie.