Unseeded Treesa Jolly and Gayatri Gopichand on Friday became the first Indian women’s doubles pair to reach the semi-finals of All England championships, joining in-form Lakshya Sen, who too reached the last four round of the men’s singles competition here.

Playing their first Super 1000 event, Treesa and Gayatri, World No.46, recorded the biggest win of their career, a stunning 14-21, 22-20, 21-15 win over world championship silver medallists and second seeds Lee Sohee and Shin Seungchan of Korea.