Prime Minister Narendra Modi on Sunday congratulated ace shuttler P V Sindhu on winning her first ever Singapore Open title, saying it is a proud moment for the country and her victory will inspire upcoming players.

Double Olympic medallist Sindhu lifted the Singapore Open Super 500 trophy by outwitting China's Wang Zhi Yi in an intense battle in the women's singles final here on Sunday.

Modi tweeted, "I congratulate P V Sindhu on winning her first ever Singapore Open title. She has yet again demonstrated her exceptional sporting talent and achieved success. It is a proud moment for the country and will also give inspiration to upcoming players."

A 'relieved' Sindhu hopes to continue her rich vein of form in the upcoming events, including the Birmingham Commonwealth Games, after winning the Singapore Open title here on Sunday.

Sindhu managed to stay strong in the key moments to prevail 21-9 11-21 21-15 over 22-year-old Wang Zhi Yi, the reigning Asian Championships gold medallist, in the summit clash to claim her third title of the season.

"In the last couple of tournaments, there were hard-fought matches, and losing in the quarterfinals and semifinals was a bit upsetting but each match mattered and finally I could get this," Sindhu told reporters after the win.

"I am very happy because after a long time coming here to Singapore and winning this, means a lot to me."

"I have finally crossed that level, I have got the win now and I hope the same tempo continues for the rest of the tournaments and I do well in the upcoming event."

Living out of a suitcase is the norm for international athletes and Sindhu admitted there is no time to celebrate as she shifts focus on the Commonwealth Games starting July 28.

"I just have a week after that again we leave for Commonwealth Games. Maybe I can take a day off, and spend time with my family," she said.

"It has been a long tour for me, there was Indonesia, Malaysia for two weeks, and now Singapore. So it is time to go back home and just relax for a bit and then get back to training but definitely, I am going to enjoy this win, it means a lot.

Asked if the Singapore open title augurs well for the Commonwealth Games and World Championships, Sindhu said: "Ya it is. I wanted to be more successful (laughs). Right now it is time to just go and relax and then focus on the Commonwealth Games and hope I get a medal in that.

"Followed by that we have the world championships and Japan Open, of course, hope for a medal in that too. I have to be physically and mentally fit. My strength and conditioning coach Srikanth is there with me, so it should be okay."

Sindhu, who already has a silver and a bronze apart from the team gold from the Commonwealth Games, will be favourite to win the gold this time.

Talking about the Birmingham event, Sindhu said: "It is going to be a team event. We have to give 100 percent and be in 100 percent form. As a team, we need to work (towards it) and after that, there is an individual event.

"I hope I give my best, it is not going to be easy, there are some good players. So hoping for as many medals as we can."

The final was a tricky affair as Sindhu recovered from a mid-game slump to outwit China's Wang Zhi Yi.

"It was a good match. After winning the first game, I gave away continuous points from the beginning in the second, so it was really difficult to catch up. But in the third game, it was 9-11 and it was a crucial phase, where I had to maintain the lead," she said.

Talking about her opponent, Sindhu said: "She played well. I am playing her for the second time. I was not hoping that it will be easy, I knew it will be a long match, long rallies."