Sunitha's popular content often features her soulful melodies and live performances from television and concerts.

Sunitha’s playback career began at the age of 13 with the song "Chinna Chinna Aasha" from Rikshavodu (1995), but her breakthrough came with the devotional blockbuster "Om Namaha Shivaaya" from Annamayya (1997). This song established her as a master of traditional and semi-classical compositions. Throughout the 2000s, she became a muse for music directors like M. M. Keeravani and Mani Sharma.

: Videos of her performing her debut song at various concerts remain some of her most-watched clips on YouTube. Tribute to S.P. Balasubrahmanyam