Kavita, participating in the multi-sporting event as an Independent Olympic Athlete following India's ban from International Olympic Committee, beat Karchayeva Aida of Kazakhstan in bronze medal contest of the girl's 44kg category.
The judoka from Manipur was beaten by Lin Wan Chu of Chinese Taipei in the third round but claimed the bronze via the repechage round after her victor reached the final.
Weightlifter Lalchhanhima won another bronze in boy's 56kg category with a total lift of 228 (100 in snatch and 128 in clean and jerk). Ji Feiyong of China won the gold with a total lift of 239kg (104+135) while Nguyen Tran Anh Tuan of Vietnam bagged the silver with a lift of 235kg.
Chandrika Tarafdar, who last year became the first Indian to win a medal in the Youth World Weightlifting Championships, was disqualified in the girl's 48kg category.
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In squash, Tanvi Khanna won her first round match of the girl's individual event against Nakahira Momoka of Japan in straight sets (11-9, 11-3, 11-7) in 17 minutes.
In tennis, R S Bhosale won her girl's singles first round match against Olla Mourad of Qatar 6-0 6-0. In men's singles, Garvit Batra advanced to the second round after defeating Abdulla Ahli 6-0 6-0.