Bimoljit lost the first round but knocked out Valasith Bouapha of Laos in the second round in the men's Sanshou 60kg quarterfinal contest while Sandhyarani beat Manalu Moria of Indonesia 2-0 on points in women's Sanshou 60kg last eight stage match.
Bimoljit will play Mohammad Seifi in the semifinals while Sandhyarani takes on P Barckkham of Laos in the last four stage.
Earlier in the day, Sagolsem Somorjit finished a disappointing last in the men's nanquan/nangun all-round nangun wushu competition.
Somorjit finished 15th in a 15-player field with a total score of 7.65.
Huang Guangyuan of China won the gold with a total score of 9.86 while the silver and bronze went to He Jingde (9.74) of Hong Kong and Vietnam's Pham Quoc Khanh (9.68) respectively.
Published 15 November 2010, 16:44 IST