[3] In 1983, Subasinghe started a drama school called the Lama Ha Yowun Ranga Peetaya and she joined with it.

During this period, she acted in many stage plays such as Suba Sarangatha by Athula Peiris and Sakvithi Nikmana by Salaman Fonseka.

[4] In 1980s, Pradeepa started career as a professional actress with the stage play Sathyanganavi produced by Vijitha Gunaratne.

[2] In 1988, Kapila Kumara Kalinga created the stage play Nelum Pokuna which included lots of songs.

Later she sang the theme song Rathurosa Malak Pipewi along with Amarasiri Peiris for the single episode teledrama directed by Kalinga.

[3] However, six of those songs of the cassette was banned by Sri Lanka Broadcasting Corporation due to contemporary social issues of various events that were talked about in the country at that time were sung.

[2] The song Kolomthotin Naw Nagga spoke about the child trafficking that was prevalent in Sri Lanka at that time.

The song Madura Oya Pamula speaks about the incidents where farmers drank poison and could not pay their debts.

[2] In 1993, she won the award for the Best Actress of the Year for her performance in the play Ukdandu Ginna produced by Nimal Ekanayake at the State Drama Festival.

[3] However, Pradeepa selected her pathway from singing where she sang several popular songs including; Kolom Thotin Naw Nagga, Supem Hangum, Sandagiri Pawwa, Vine Katina Un, Hansa Geethaya, Nadan Punchi Hiramane, Neka Uyan Wathu and Ha Ha Balagenai.

Since then, she rendered her voice for many films including Mario Jayatunga's Nidi Yahana Kalabei, Handana Kinkini, Miriwadi Sagalak, Saman Neelawathura's Savithrige Rathriya, Christy Shelton's Thahanam Gaha and Bennett Rathnayake's Ira Handa Yata.

[7] On 22 November 2017 her devoted fan Kasuni Nadeeka launched the book Gee Pradeepartha on Pradeepa's singing life and critical reviews of her songs.