The World No10 produced a stellar show of determination to oust the All England Open champion Nozomi Okuhara of Japan, 21-19, 21-10 in 49 minutes.
With this, the 21-year-old has assured India a second medal less than 24 hours after wrestler Sakshi Malik ended the country’s drought by taking bronze.
Sindhu becomes only the fifth Indian woman to clinch an Olympic medal, following in the footsteps of weightlifter Karnam Malleswari (Sydney, 2000), shuttler Saina Nehwal, boxer MC Mary Kom (both London, 2012) and Malik.
All four of those women had to be satisfied with bronze and by reaching the final, Sindhu has ensured that she would be the first Indian woman to claim either silver or gold.
The Hyderabad girl will face the World No. 1 Carolina Marin of Spain in the title showdown on Friday.
Sindhu has a 2-4 head-to-head record against the reigning world champion and last beat her in October at the Denmark Open.
The semi-final contest was by no means an easy task for the two-time World Championships bronze medallist.
Having lost the last three times to the Japanese, the Indian didn’t live up to her underdog status, taking control of the match with a mixture of aggression and guile.
Track and field kicked off this week in Rio and there were some breathtaking performances, especially from Wayde van Niekerk.
Michael Phelps bowed out in style, but a new swimming sensation also made a splash, while Andy Murray dazzled on the tennis court.
Last night didn't end the way I had dreamed. I'm disappointed. I was quickly reminded of… https://t.co/mWDDUX6XTP— Allyson Felix (@allysonfelix) August 16, 2016
4x OLYMPIC CHAMPION!!!!! I cannot believe it!! ... https://t.co/D8glJMujXq— Laura Trott (@LauraTrott31) August 16, 2016
Woke up to all these lovely messages! Can't believe the support that I've received ❤ pic.twitter.com/PSeSa4SbKP— Jack Laugher (@JackLaugher) August 17, 2016
It's been a couple years but I think I've finally earned that tattoo 😊… https://t.co/HGFwOAgMnD— Joseph Schooling (@joschooling) August 16, 2016
Double Gold Medalist @andy_murray Extraterrestrial. Raised by a family in Dunblane, Scotland.— Jamie Murray (@jamie_murray) August 15, 2016
BOLT INTO HISTORY
His Olympic preparation hadn’t been ideal and he entered Rio facing some questions, but the fastest man on the planet proved, yet again, that doubting him is futile as he always delivers.
He did so again with gold in the 100m, beating Justin Gatlin, to claim his third 100m title in a row.
Jamaica Stand Up!!!
This for you my people
— Usain St. Leo Bolt (@usainbolt) August 15, 2016
Bolt! Perfect last name!
— COMMON (@common) August 15, 2016
Had a bad start again, he played around again & relaxed the last 15-20 & still won 😳
— Chad Johnson (@ochocinco) August 15, 2016
Please don't hit him with a Segway he has other races
— Lolo Jones (@lolojones) August 15, 2016
Pretty cool shot...the anticipation of the 100m..Usain Bolt is unreal. 3 golds in a row. Congrats TeamUSA for silver pic.twitter.com/kOokq4DV9e
— Drew Brees (@drewbrees) August 15, 2016
— IAAF (@iaaforg) August 15, 2016
— BrianneTheisen-Eaton (@btheiseneaton) August 15, 2016
Manchester City’s Sergio Agüero gets mocked for missing penalties against Steaua Bucharest, a Leonardo Di Caprio lookalike steals the show in Rio, while actor Zac Efron finally met Simone Biles.
— Floyd Mayweather (@FloydMayweather) August 16, 2016
— Zac Efron (@ZacEfron) August 16, 2016
Usain Bolt stormed across the finish line ahead of Andre De Grasse and Christophe Lemaitre to win the 200m final in 19.78 seconds on Friday morning for his third straight Olympic gold in the event and his eighth title in the Games overall.
Bolt dominated the narrative leading up to and during the Olympic Games and lived up to his reputation, blowing away the competition and emerging as the undisputed track superstar.
Unfortunately, we won’t be treated to the sight of the Jamaican speeding down a track in the Games again. He confirmed after his victory that his celebration of falling to his knees on the track was his way of “saying goodbye.”