New Delhi:Sania Mirza's back on the move in the rankings and this time, it's in the upward direction. After beating Martina Hingis in the Korea Open and reaching the semi finals of the Sunfeast Open, Sania has climbed four places to 55th in the singles rankings. After her big win over the number eight, the Hyderabadi garnered up an additional 428 points to help her rise in the rankings. Sania has slid this year in the singles rankings after holding her highest world ranking of October 31. Meanwhile, Sania maintains her 26th place in the doubles rankings.