Hailing form a family of musicians, S. MAHATHI is a child prodigy. Her father Sri. Thiruvaiyar P. Sekar, a Vocalist is a disciple of Padmavibhushan Dr. M. Balamurali Krishna. Her mother Smt. Vasanthi Sekar is a Flautist, is the grand disciple of Sri. T. R. Mahalingam, Sri. N. Ramani and Smt. Kesi. She is the great granddaughter of the famous violinist “Sangeetha Kalanidhi” Pazhamaneri Swaminatha Iyer.
Mahathi, started identifying Classical Ragas at the tender age of 1 ½ years. This talent was identified by the parents during her father’s concert at a temple in Palakad. Her parents nurtured her talent by teaching her more and more Ragas. When she was 2 ½ years old she was able to identify about 75 Carnatic Ragas. In those days, just to test her talents, her father used to mix up Carnatic Swaras but Mahathi did not hesitate to identify the exact swaras of the Ragas.

When she was 3 yrs old she came to Chennai with her mother for the December Music season (1988). At the Concert of Mandolin U. Srinivas at the Mylapore Fine Arts, on December 25th Mahathi, sitting on her mother’s lap kept identifying the Ragas played by the musicians on stage. The Secretary of the Sabha, who was sitting next to her mother arranged for a live demonstration of the child’s talents, soon after the main item of the concert got over. Mahathi, without the slightest hesitation identified all the Ragas and enthralled the audience. This incident appeared in all the leading news papers at that time.

Mahathi underwent her initial musical training from her parents and from Deepa, Gayatri of Trivandrum. When Mahathi’s family moved to Trichur, she was put under the guidance of Sri. Mangad K. Natesan.  
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 sang for some of the Malayalam movies. Completing her 10th Standard, her family moved to Cochin, where she did her 11th in Sacred Heart Convent.  At this juncture, once during her visit to Chennai, she had the greatest opportunity of meeting Isai Gnani Illayaraja. The Isai Gnani, recognizing her musical talents, made her sing a Solo “Enna Maranthalum” in his music direction in the movie “Kaadhal Jaathi”.

Meanwhile, in 2001, Mahathi bagged the prestigious Kerala State Award for Classical Music in the Youth Festivals. She also got the title “Bala Bhaskara” form the VDS Arts Academy, Chennai.  Completing her 11th Standard, her family moved to Chennai, foreseeing her career in the Playback Singing field too.  The year 2003, was a turning point in Mahathi’s life. On May 1st 2003, came her smash hit “Aiyyaiyyo Pudichirukku”, a duet song with Sri. Hariharan, Music Directed by Sri. Harris Jeyaraj in Vikram’s Super Hit Movie “Saamy”.