Sania Mirza and her mixed doubles partner Ivan Dodig on Tuesday beat Alexander Peya and Zheng Saisai 2-6, 6-3, 10-6 here, setting the stage for quarter-final battle against the pair of Rohan Bopanna and Canada's Gabriela Dabrowski.
Earlier in the day, Bopanna and Dabrowski mounted a great fight back to win against Poland's Lukasz Kubot and Taiwan's Chan Yung-jan to win 6-4, 5-7, 10-3.
The quarter-final pits the two Indians who represented the country in mixed doubles at the 2016 Olympics in Rio Games where Sania-Bopanna lost the bronze medal play-off tie.
The Indo-Croatian pair was outplayed in the opening set as Peya-Zheng began the proceedings aggressively.
But the second seeded Sania-Dodig used all their experience to turn the tide and broke their opponents at a crucial time in the second set to win it 7-5.
In the deciding third set tie-break, Sania-Dodig imposed themselves on the match, hit several winners, including backhand and forehand volleys, to snuff out the opposition in an hour and four minutes.
Second seeded Sania and Croatian Dodig entered the second round after beating Germany's Laura Siegemund and Croatian Mate Pavic 7-5, 6-4.
The unseeded duo of Bopanna and Dabrowski clinched the first set without much fuss but went down in the second before bouncing back in the third set tie-breaker in a match that lasted one hour and 16 minutes.
Siddhant Banthia and Turk Kaya Gore entered the boys men's doubles quarter-final, beating Zizou Bergs and Yshai Oliel 6-3 7-6(6).
In the girls singles, Mihika Yadav lost 2-6, 1-6 against Japanese Mai Hontama.
(With IANS inputs)
