Keerthana is a disciple of Vidushi Bombay Jayashri. Initially trained by her parents Mridangam Vidwan Trivandrum R. Vaidyanathan and. Meena Vaidyanathan, she has been under the tutelage of Vidushi Bombay Jayashri since 2001. Keerthana has accompanied. Jayashri in several concerts including the Carnatic concert movie ‘Maargazhi Ragam’.