[2][3] A four-time winner of the Sarasaviya Award for Best Singer, Wickramasinghe has contributed a number of popular songs to the Sri Lankan music industry in a career expanded more than five decades.

She first attended Kirimatiyagara Vidyalaya for primary education and then she was admitted to Kesbewa Government private school in 1954 where she first started to be involved in music.

Later she went to Mampe Sri Sobhita Maha Vidyalaya and Piliyandala Central College to complete secondary education.

The sixties were the most important decade for Wickramasinghe, because some of the most beautiful milestones in her music career took place in the early 60s.

The song was composed by Dalton Alwis and the music was provided by Lionel Algama, "Sende Ambare Nisha Mal Yata".

[15] Some of her most popular songs include: Dethata Walalu, Sadaa Ukulu Thala, Dawasak Da Wasantha, Master Sir, Viyo Gee Gayena, Thun Sitha Dehen, Me Awanhale, Sudu Muthu Rala Pela, Parami Dam Puramu, Nil Ahas Thale, Ran Tikiri Sina, and Punchi Sithe.

[13] In 2012, to mark 45th anniversary of her musical career, Wickramasinghe started a solo concert named "Master Sir".

A children's songbook titled "Bonikko" with a CD of the songs along with the lyrics, chords and illustrations were launched to coincide with the concert.

[27] In 2014, the 'Master Sir' concert was held on 26 October at the Kularatne Hall of Ananda College in aid of the Welfare Association of the Ministry of Technology and Research.

[31] In 2002, Wickramasinghe founded a charity organization named "The Mother" with the aim of catering to children, elders and artists who made a lifetime contribution to the field.