[4] Sudha Ragunathan received her initial training in Carnatic music from her mother V. Choodamani.

As of January 2015, she was preparing to debut in Kollywood as a music director with the upcoming Tamil film Thanneer, based on a novel published in 2009 by Ashoka Mitran.

On 2 October 2016, the United Nations released a stamp to honour India's Carnatic music artist Bharat Ratna Dr.M S Subbulakshmi.

She performed at the Alice Tully Hall, Lincoln Centre, at New York Broadway to commemorate 50 years of the Bharatiya Vidya Bhavan.

The school has a faculty of her students along with Ragunathan herself and has conducted lec demonstrations and workshops in many venues across the globe.

Ragunathan is known for her charitable works, and launched the Samudhaaya Foundation in 1999, of which she is the founder and managing trustee.

The foundation has assisted the underprivileged in the areas of child healthcare, infrastructural aid for homes, and heart surgeries for children.