India beat South Korea 44-45, 45-30, 45-33 in a nerve-wracking quarter-final clash that lasted almost three hours to enter the semi-finals and assure themselves a maiden medal at the Suhandinata Cup — the team event of the BWF World Junior Championships — here on Thursday.

India play Indonesia on Friday for a spot in the final. India started off on the back foot as Bhargav Ram Arigela and Viswa Tej Gobburu went down 5-9 in the first boys doubles against Cho Hyeong Woo and Lee Hyeong Woo. In the girls doubles, Vennala K and Reshika U then beat Cheon Hye In and Moon In Seo 10-9, before Rounak Chouhan beat Choi Ah Seung 11-9. However, a 4-9 loss for C Lalramsanga and Aanya Bisht in the mixed doubles against Lee and Cheon meant that Unnati Hooda had to win 15 points before her opponent Kim Han Bi could reach nine.