She started playback singing in the year 1999 with the Telugu movie Nee Kosam,[1] music scored by R.P.Patnaik.
Kousalya rendered her voice for dubbing in three movies, Sravanamasam for heroine Kalyani , Bakara for heroine Yashika and "Cheekati Rajyam" for Kamalhassan's wife character. She composed " Sri Annamayya Sankeerthana Sudha " with four new Keerthanas released by Aditya Music. She won 3 Nandi Awards as a Best Playback Singer where one for own composition on Etv Adade Adharam, daily serial.
Main article: List of songs recorded by Kousalya
Bangarukonda, Nee Kosam, Chitram, Idiot, Itlu Sravani Subramaniam, Nuvvu Leka Nenu Lenu, Avunu Valliddaru Ishtapaddaru, Shivamani, Amma Nanna O Tamil Ammai, Gangotri, Devadasu, Satyam, Adirindayya Chandram, Desamuduru, Kabbadi-Kabbadi, Chenna Kesava Reddy, Chakram, Nuvve-Nuvve, Ninne Ishtapaddanu, Narasimhudu, Shock, Sravanamasam, Dhee, Pelli Kani Prasad, Godava, Dubai Srinu, Nagaram, Takkari, Satyabhama, Krishna, Maska, Neninthe, Vengamamba, Mithrudu, Gopi Gopika Godavari, Mayagadu Brahmalokam to yamalokam via Bhulokam, Simha, Golimar, Saradaga Kasepu, Ranga the Donga, Emaindi evela, Poola Rangadu, Srimannarayana, Shiridi Sai,Vijetha,Chinni Chinni Asha, Kiss, Thanu Monne Vellipoyindi,Veta, Dictator, Soggade Chinni Nayana.[2] Tupaki Ramudu
TV and stage shows
- Final winner of Padutha Theeyaga hosted by Sri SP Balasubrahmanyam garu on ETV.[1]
- Hosted Sye Singers Challenge on ETV, which was to give break for new talents in singing in 2006.
- Worked as a judge along with music director Koti & lyricist Bhuvana Chandra on Zee Telugu channel Sarigamapa Little Champs 2009.
- Composed Music & sung the Title songs of Sye Singers Challenge, Aadade Aadhaaram & Hrudayam daily serials running on ETV.
- Judge cum team leader in Super Singers 7 Presented by Airtel on Maa TV.