She then went on to complete her secondary education and chose to make a career in music, expressing interest in becoming a vocalist. Sharanya also subsequently underwent a music production course under Henry Kuruvila after doing the same in another course at A. R. Rahmans KM Music Conservatory. She received positive reviews for her song alongside K. J. Yesudas, with a reviewer from The Hindu noting she had a "sweet voice". Her first song in Tamil as an adult was from Phani Kalyan's album Konjam Koffee Konjam Kaadhal (2012), performing song titled "Adi Thaahira" alongside Sathya Prakash. She then performed in the Tamil version of Raanjhanaa for A. R. Rahman again, singing two Carnatic songs, "Kalaarasiga" and "Kanaave Kanaave", describing the first song as "close to her heart". Sharanya has also performed two songs in her father's album for the film Kangaroo singing alongside Vijay Prakash and Haricharan. In 2014, she went on to perform two melodious songs from the movie Panthu, which was followed by a duet for Raja Mandhiri which was composed by Justin Prabhakar.