Sindhu, who had earlier lost to Marin in Rio, never let her opponent dominate the match.
Sindhu defeated the Spanish player 21-19, 21-16.
As expected it was a close battle with both the players displaying fantastic tenacity but eventually it was Sindhu who prevailed 21-18, 14-21, 21-14 in the high-octane clash that lasted for 76 minutes.
The clash that Indian fans were eagerly waiting for will be played out right in the heart of the capital today.
Sindhu then upped the ante and then pushed Marin into all corners. "Sindhu" that periodically rented the air, turned into a roar when the crowd favourite raised her hands in triumph and let go a scream for one last time. But Sindhu was prepared this time around as she raised the tempo once again to clinch three straight points and pocket the game.
Indian beats Spaniard at her own game to lift India Super Series The decibel levels of the shrieks after winning important points did not hit the roof. "These matches give them a lot of confidence and they are developing very well". The title match later today is sure to attract a large number of people to Siri Fort and Marin has to make sure he remains calm amidst the sea of supporters, who are expected to root for the local shuttler. We both have had injuries. She opened up 9-4 lead and Sung was left to do the chasing from there on. Most recently, she recorded two victories over Sung in India's Premier Badminton League, albeit with that league's system of 11-point games.
This is Sindhu's second Superseries title after she also won the China Open in November 2016. But Sindhu held firm thereafter and won the game in 24 minutes.
But Marin edged her out for the top spot in that classic contest. I reached the final.
"For everyone it will be a rematch from the Olympic Final but for us it will be a new chapter in our rivalry".
Home girl PV Sindhu set up a mouthwatering finale with Carolina Marin, the two protagonists of the Rio Olympics final, at Yonex-Sunrise India Open Super Series on Saturday. It was the Rio Games bronze medallist Axelsen's third straight final appearance as the Dane further enhanced his domination in career meetings against Chou to 6-1.
In the men's doubles clash, top seeded Marcus Gideon and Kevin Sanjaya of Indonesia beat their compatriots Ricky Karandasuwardi and Angga Pratama 21-11, 21-15 to win the title.