Sindhu, ranked 12th, today suffered a 10-21 13-21 loss to world number three Ratchanok Inthanon of Thailand in the semifinal to settle for a bronze medal at the prestigious event.
The 18-year-old is the first woman shuttler from India to get a medal at the mega-event.
"I am a bit upset after the loss but I am happy to win the bronze. It was my first World Championship and it is a big victory for me," Sindhu told PTI over phone from Guangzhou.
"I was coming from an injury and missed two tournaments, so I just wanted to give my best, my 100 per cent," she added.
Playing in her maiden World Championships, Sindhu notched up stunning victories against two Chinese players in the run-up to the semifinals but she failed to read Ratchanok's deceptive game.
Talking about the semifinal match, Sindhu said: "It was tough. She played really well and there were plenty of errors from my side. I want to come back stronger and next time I want to be better," she said.
"The drift was there but I don't want to complain because it is common for all. It is there for them too. It is all in the game and how you play that is what matters at the end of the day," said the girl from Hyderabad.
