Lahiri, who is now also the Asian Tour no. 1, had achieved his previous best ranking of 99, in March this year.
The highest ranked Indian in the world at the moment, Lahiri has also become the second-highest ranked Asian player after Thongchai Jaidee who is at 49.
Besides Jeev Milkha Singh, no other Indian golfer has been ranked higher than 67. Jeev had achieved his career-best ranking of 29 back in 2009.
At present, Shiv Kapur at 154 is next best ranked Indian in the world followed by Gaganjeet Bhullar at 173.
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Lahiri's fourth win on Asian Tour and the first outside India, brings him closer to his personal goal of top-50 in World Rankings, which would then get him a berth in Majors.
Currently, if he manages to get inside top-60 or ties on May 26 or June 9, 2014, Lahiri will get a berth into the US Open at the Village of Pinehurst, North Carolina.
Further the PGA Championships, the fourth and last Major each year, usually invites all top-100 players, not otherwise qualified, on the World Ranking list. For that he needs to stay in the top-100 till the week before the PGA, which will be held from August 4.
Lahiri's sole Major appearance was at the 2012 British Open Royal in 2012, when he made the cut and also landed a hole-in-one on the third day and finished in a tie for 31st place.