Wijayadasa was named Miss Sri Lanka 2009 on Wednesday July 22, 2009 beating 11 beauty queens at Mount Lavinia Hotel in Sri Lanka.

[2] 2009 October Wijayadasa was appointed as the United Nations Good will ambassordor for Sri Lanka as a recognition of her 10 years of community service for her country.

Wijayadasa is also working as representative of " Tharunyata Hetak " - National Youth Organisation.

Wijayadasa focus on rehabilitation process, welfare of Internally Displaced People in the North of Sri Lanka and Youth education.

She started as a volunteer journalist and ventured into many avenues of social service where she contributed to major community projects before the title of Miss Sri Lanka was bestowed upon her.