The two-time World Championship bronze-medallist notched up a sensational 21-19 21-10 victory over the All England Champion from Japan in a pulsating semi-final that lasted 49 minutes.
The World No. 10 from Hyderabad will next take on two-time World Champion and top seed Carolina Marin of Spain in the summit clash tomorrow.
"My target will be to win the gold and I will give my heart out. I feel I really worked hard each and every time. Everybody's aim is to get a medal at the Olympics, one more match to go. Definitely I feel that I've a chance," Sindhu said.
Moments after her win that has assured India a silver, Bindra tweeted, "You've no idea how lonely it's been, I'm waiting for you to join me in the club."
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Responding to the tweet, Sindhu said: "I would make that wish come true. I would give my heart out for that and play my best."
The secret of her success is sheer hard work and determination and Sindhu said she just took one match at a time, like any other champion does.
"I did not think so far. I just kept on going every single match. The immediate target was to win the next match. If you keep on winning you are going to get a medal."
Congratulating Sakshi, Sindhu said: "I did not meet her. I saw her on TV and I will definitely congratulate her for her bronze. She played really well. It's a great thing for India."
On her strategy tomorrow against the left-handed Marin, a two time World Championship winner, Sindhu said she would just have to go by her coach Pullela Gopichand.
(REOPENS FGN 47)
In her moment of glory, Sindhu did not forget top laud her rival.
"Each and every point was very important and I was really focused. I'm very happy. There were long rallies, she played really well and there were so many unforced errors. My coach kept me going. I was really alert for every point," she added.
"I never thought it would be an easy match. You just don't look at the scores, there were a lot of rallies long, and she was not leaving anything. Each and every point was very important for me," he said.
(REOPENS FGN 50)
National coach Pullela Gopichand said they will give their best in the gold medal match tomorrow.
"She has played fantastic. She has played each match from the beginning - against Michelle, Wendy... She has really played well and she has fought hard. Today's win was great. She is up against a tough player in Carolina Marin tomorrow. We will give our best shot and let's see how it goes," Gopichand said after Sindhu's victory in the semifinal.