[3] She is the voice behind Bollywood songs such as: "Khulke Jeene Ka" (Dil Bechara), "The Humma Song",[4] from OK Jaanu;[5] "Phir Bhi Tumko Chahunga" (with Arijit Singh) and "Baarish" for Half Girlfriend;[6] "Kanha",[7] for Shubh Mangal Savdhan; "O Sona Tere Liye" and "Chal Kahin Door", both from the film Mom.

Shashaa released her first single, 'In My Skin' from her debut Independent EP (I'm Sorry, Heart) featuring guitarist, Keba Jeremiah in January 2022.

[10] Studying in both India and Canada during her schildhood, she ultimately graduated in 2005 from L.A. Matheson Secondary School with a 96% average (repeating the twelfth grade she had already completed in India due to her being underage),[10] and earned a Gordon M. Shrum Major Entrance Scholarship for Undergraduate Studies at Simon Fraser University, the Matheson Outstanding Academic Achievement Award, The Surrey Administrator's Scholarship, The UBC President's Entrance Scholarship, and the Governor General's Medallion for the top-most achiever of the province's graduating class of 2005.

[13] Her second song, "Aye Mr. Minor", from Rahman's musical, Kaaviyathalaivan, gained immediate recognition in the Tamil music industry, followed by "Naane Varugiren", "Vaan", "Silikku Marame", "Oday Oday", "Kaara Aatakaara", "Un Kadhal Irundhaal", "Thaen Kaatru", "Uyiraagi", "Kaadhalaada" and the recent "Naan Pizhai" for Anirudh Ravichander.

[14] She was featured on three tracks in the 2015 Mani Ratnam - A. R. Rahman film OK Kanmani:[15] "Kaara Attaakaara", "Parandhu Sella Vaa", and "Naane Varugiren", as well as on the corresponding three songs in the Telugu version, OK Bangaram.

She has recently featured on the soundtrack of AR Rahman's "Dil Bechara", starring Sushant Singh Rajput and Sanjana Sanghi.

[19] She is also collaborating with playback singer, Chinmayi Sripada, for her fifth original composition, to be a bilingual track, titled "Yezhundhu Via" in Tamil and "Roothi Hui" in Hindi.