India's new tennis star Sania Mirza has jumped up by 34 points to move to a career-best 132 in the latest WTA Tour tennis rankings following her third round appearance in the Australian Open.

Mirza, 18, put up a brave fight before going down to eventual winner Serena Williams in the third round of the season-opening Grand Slam in Melbourne.

Before the championship, Sania was ranked 166.

But her compatriots have a lot of catching up to do with Rushmi Chakravarthi dropping to No.349 from her previous ranking of No.339.

Sisters Ankita and Saana Bhambri have also fared no better. While Ankita slided to No. 432 from 416, Saana did marginally better to move to 548 from 568.

The top honours among the women went to Lindsay Davenport who retained her number one position despite losing to Serena in the Australian open final.

Serena herself moved up five places from No. 7 to be perched on the second spot.

Roger Federer retained the No. 1 position in the men's rankings, a loss in the semifinals of the Australian Open notwithstanding, while Lleyton Hewitt overtook Andy Roddick for second place after reaching the final.

Russia's newest Grand Slam champion, Marat Safin, retained fourth place in the men's rankings after beating Hewitt in Sunday's championship match.