Sania-Martina win WTA Finals
They won the title by beating Spanish pair of Garbine Muguruza and Carla Suarez Navarro in the final clash.
The Indo-Swiss pair beat their opponents by 6-0, 6-3 margin.
The match lasted for 66 minutes.
"It's incredible. I feel like it was a perfect day," Hingis was quoted as saying by the official WTA webiste.
"On court, off court, we have a lot of fun," Mirza said.
"To play in tournaments like this is what we've fought all our lives for and it's incredible to play in front of a packed stadium," he was quoted as saying by the website.
The pair is currently unbeaten for 22 matches. They have been officially crowned 2015's best doubles team.
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