The highest ranked Indian has made steady progress on the Tour since becoming the highest-ranked Indian of all-time some three years ago.
The 27-year-old from Kolkata has won five titles from eight final appearances.
Egypt's Ramy Ashour moves into his tenth successive month as world number one.
Ashour, who celebrated his 26th birthday yesterday in San Francisco where he is competing in the PSA International 70 NetSuite Open, is enjoying the best run of his career - unbeaten now in 44 matches in a row and boasting title triumphs in the last eight Tour events in which he has competed.
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Englishmen James Willstrop and Nick Matthew hold onto third and fourth places, respectively, with Egypt's Karim Darwish at No 5.
Despite title successes in both the Colombian Open in August and last month's Malaysian Open in Kuala Lumpur, England's Peter Barker remains in seventh place - behind sixth-placed Mohamed Elshorbagy, the 22-year-old Egyptian who finished as runner-up to Gaultier in Mexico.