Olympic silver medallist PV Sindhu jumped two places to achieve her career-best ranking of seven in the world, while Saina Nehwal is also back in the top ten in the latest Badminton World Federation, BWF World Ranking.Sindhu, who clinched the China Open and then reached the finals at the Hong Open, has 68,699 ranking points. She will carry India hopes at the Dubai Super Series Final, a prestigious tournament she qualified for the first time.Former World Number one Saina, who is on a comeback trail after recovering from a serious injury, improved a spot after slipping five places to 11th place last week.K Srikanth, who is out of action since undergoing an injury, slipped a place to World Number 13, while Hong Kong Finalist Sameer Verma jumped 13 places to be World Number 30.