The famed Indo-Swiss pair registered an easy 6-3, 6-1 victory over the Russian-Czech team of Vera Dushevina and Barbora Krejcikova in the St. Petersburg Ladies Trophy women's doubles final.
The final match, which lasted just an hour, witnessed the top-ranked players playing possibly their best tennis for some time.
This is Santina's fourth title this year. They started the year with wins in Brisbane and Sydney before completing a hat-trick of Grand Slam titles at the Australian Open.
They are now 4 wins away from equaling the all-time record of 44 set by Jana Novotna and Helena Sukova in 1990.
After their upset loss in the French Open quarter-finals, they have claimed titles at Wimbledon, US Open, Guangzhou, Wuhan, Beijing, the WTA Finals in Singapore, Brisbane and Sydney last year.
