Kashyap, who reached a career high of World No.6 last year, had been out of form for quite some time until his semifinal performance last week at the Swiss Open which helped him gain vital points.
Meanwhile, first round exits at both All England Open and Swiss Open have led Kidambi Srikanth to drop two places to 22nd.
Saina Nehwal and P.V. Sindhu, however, have retained 8th and 9th positions in the women’s singles rankings.
No Indian figures in the top-25 of men’s, women’s and mixed doubles rankings.