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Priyanshu Rajawat also crashed out in the men's singles opening round.
Lakshya Sen lost 21-12, 10-21, 15-21 to the world no. 9.
World No. 18 Sen, the reigning Commonwealth Games champion, will take on Indonesia's world No. 9 Jonatan Christie in the semifinals.
Lakshya defeated Denmark's Magnus Johannesen 21-14, 21-15 to enter the second round.
Lakshya Sen's campaign ended after he lost to reigning world champion Kunlavut Vitidsarn of Thailand in the men's singles semifinal.
Young Indian Priyanshu Rajawat also exited the season's last BWF Super 750 event.
It turned out to be a forgettable day for the Indian squad as both stars went down in straight games.
The women's doubles pair of Treesa Jolly and Gayatri Gopichand lost to top seeds Chen Qing Chen and Jia Yi Fan of China.
The most successful Indian at World Championships with five medals, Sindhu lacked any sting in her attack and went down tamely 14-21 14-21 to old nemesis Nozomi Okuhara of Japan, a 2017 gold medallist and silver winner in 2019.
Prannoy, the world number 9, who reached the quarterfinals in the last two editions, saw off the left-handed Koljonen 24-22, 21-10 to extend his head-to-head count over the Finnish player to 3-0.