Manika, who played a stellar role in India's historic gold in the women's team event, notched up a win against Singapore's Yihan Zhou 4-1. The Delhi paddler hardly broke a sweat in the first three games, winning 11-5 11-6 11-2.
However, she was unable to finish the match as she stumbled in the fourth game 6-11 but sealed the match with a 11-9 win in the fifth game.
In the other women's singles, Mouma was ousted by Yu Mengyu of Singapore 13-15 7-11 5-11 11-7 5-11.
Madhurika Patkar also crashed out of the event as she lost to England's Kelly Sibley 9-11 8-11 11-2 3-11 11-8 6-11
In the men's singles draw, Sharath Kamal, Harmeet Desai and G Sathiyan sealed quarterfinal berths.
Sharath beat Australia's Heming Hu 11-8 12-10 8-11 11-6 11-5 while Desai notched a win against Malaysia's Chee Feng LEONG 11-5 11-7 11-5 7-11 11-4 and Sathiyan's Nigerian opponent Segun Toriola retired after the first game 11-7.
In the men's double's Sharath and Sathiyan reached the quarter finals as they outclassed the Sri Lankan pair of Buwaneka Jayasingha Mudiyanselage and Imesh Ranasingha 11-3 11-4, 12-10.
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