While her filmography is vast, Sunitha is also a legendary dubbing artist. She has voiced for leading actresses like:

Her work as a judge on Telugu Indian Idol and Sa Re Ga Ma Pa has made her a household name, inspiring new singers.

| Year | Film | Song Title | Music Director | Notes | | :--- | :--- | :--- | :--- | :--- | | 1996 | Ninne Pelladata | "Jabilamma" | Sandeep Chowta | Career-defining hit | | 1997 | Meri Aawargi (Dubbed) | "Yeh Dil Tum Bin" | A. R. Rahman | Cross-language success | | 1998 | Tholi Prema | "No Problem" | Deva | Youth anthem | | 1998 | Choodalani Vundi | "Yeduko" | Mani Sharma | Classical touch | | 1999 | Raja Kumarudu | "Nuvvu Nenu" | Mani Sharma | Mahesh Babu’s debut film |

| Film | Song(s) | Music Director | Notes | | :--- | :--- | :--- | :--- | | Tholi Prema (1998) | Yemaindo Ee Vela | Deva | First major hit; established her career. | | Nuvve Kavali (2000) | Asha Lata | Koti | Blockbuster duet with Devi Sri Prasad. | | Manasantha Nuvve (2001) | Nuvve Nuvve | R. P. Patnaik | Romantic classic. | | Nuvvu Nenu (2001) | Nuvvu Nenu Prema | R. P. Patnaik | Chartbuster. | | Santosham (2002) | Pattu Pattu | R. P. Patnaik | Peppy number. | | Okkadu (2003) | Nuvvu Naa Kosam | Mani Sharma | Emotional melody. |