Somdev lost to Donald Young in the last four stage but the effort was enough to jump two places up.
Yuki Bhambri, who has resumed practice after nursing a broken ankle, has lost 14 positions to slip to 489th spot.
In the doubles chart, veterans Leander Paes (6) and Mahesh Bhupati (7) kept their places in the top-10 while Rohan Bopanna rose a rung to career-best 38.
Meanwhile, a struggling Sania Mirza gained a position to be at 131 in the WTA singles chart.
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