International Sasmita Mallick`s spectacular hat-trick powered Orissa to a thumping 3-0 win over Sikkim Red in the first semifinal match of the 1st Pem Dorjee Memorial All-India Women’s Football Tournament at Gangtok in Sikkim today. Orissa will meet Manipur in the final on October 15. Earlier in the first semifinal, Manipur edged out West Bengal 1-0.