The quarter-final loss to lower ranked Olga Poutchkova of Russia at the Tashkent Open brought another plunge in Sania Mirza's ranking as the ace Indian tennis star dropped six places to be 61st on the latest WTA world rankings released on Monday.

Sania, who had registered a slight improvement in her ranking to be at the 55th spot after beating World No 8 Martina Hingis, went down to Olga 6-4, 4-6, 6-0 to crash out of the Tashkent tournament last week.

Now, Sania, with 397 points, is ranked below the Russian, who jumped from 58th to the 46th spot.

However, the top seeded Indian woman player has maintained her doubles ranking by remaining steady at 26th for the third consecutive week.

Among other Indian women, Shikha Uberoi (219 to 213) Ankita Bhambri (363 to 361), Isha Lakhani (389 to 385) climbed up the ranking ladder while Rushmi Chakravarthi (456 to 457) slipped one place.

In men's doubles rankings, Leander Paes has maintained his No 10 position while Mahesh Bhupathi has slid two places to be at 26th spot.