The home side, ranked eighth in the world, defeated fifth-ranked Singapore 14-16, 11-15, 15-9, 17-16 and 15-7 for a total score of 72-63 at the Indira Gandhi Indoor Stadium Complex.
After Philippines pulled out of the tournament due to visa issues, only India and Singapore remained in Group D and both have already qualified before today's match which the home side won 3-2 in a 100-minute duel.
India will play against Singapore again tomorrow to decide the group topper. This was necessitated as teams in other groups will be playing twice in the group stage.
However, the women's team lost to Indonesia 0-3 in their opening Group A match. The Indians lost 10-15, 10-15, 8-15 in just 48 minutes.
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The women's section has been divided into two groups of four teams each and the two top countries from each group will qualify for the quarterfinals.
Meanwhile, the tournament suffered another setback as Myanmar men's team also pulled out of the tournament to become the third team to do so. Chinese women's team and Philippines men's team had also pulled out of the tournament.
"They (Myanmar) have pulled out in the last minute. The reason why they have pulled out has not reached me. I think Myanmar has not given the reason to ISTAF (international federation) till now," Sepaktakraw Federation of India Secretary Yogender Singh Dahiya told PTI.