The fifth seeded Indo-Spanish pair downed the sixth seed team of Katarina Srebotnik of Slovakia and Jie Zheng of China 7-5 6-1 in the semifinals of the USD 4,828,050 hard court event.
They play third seeded Russian pair of Ekaterina Makarova and Elena Vesnina, who defeated fellow Russian Maria Kirilenko and Nadia Petrova 6-4 7-5 in their semifinal.
It will be fifth final of the season for Sania, who will not compete in the rest of the season.
She won two titles this season, one with Australian Anastasia Rodionova (in Pattaya) and one with American Bethanie Mattek-Sands (in Brussels).
She ended runners-up with Vesnina at Dubai and Indian Wells.
Meanwhile, the India pair of Rohan Bopanna and Mahesh Bhupathi carshed out of the men's doubles event with a 2-6 6-7 (8) defeat at the hands of Alternate pair of Argentine Carlos Berlocq and Denis Istomin of Uzbekistan.