World No 56 Prannoy, who has been in rollicking form in the Indian badminton League last month, once again punched above his weight, surpassing Denmark's Jan O Jorgensen, ranked ninth, 21-14 13-21 21-17 in a 53-minute match.
Srikanth, who has also acquired a giant-killing reputation with his recent exploits, continued his carnage, defeating Japan's Kazuteru Kozai 21-12 21-16 in just over half an hour in another men's singles match.
However, it was end of the road for Sindhu as the eighth-seeded Indian lost 6-21 17-21 to local shuttler Akane Yamaguchi in a 32-minute women's singles match at the Tokyo Metropolitan Gymnasium.


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