After winning the pageant "Models of the New Generation" hosted by Derana TV in 2006, Noshika was selected to represent Sri Lanka at the Tourism World contest.
After appearing in the TV commercials for Coca-Cola and Nestlé, she was asked to appear in the teledrama Kindurangana, a remake for the Sri Lanka television market of the Hindi television serial Kasam Se. This was a joint venture between Balaji Telefilms of India and the Maharaja Organisation of Sri Lanka. Based on the popularity of her role, she became the face of LUX calendar in that year.
Noshika was then invited to take part in Sirasa Dancing Stars and went on to the finals of the show. Thereafter she appeared in many TV serials such as Sandasakki, Ayal, Pingaladanauwwa. Noshika has been nominated as the most popular actress in both the Sumathi Awards and Raigam Awards.