. . . "Pradyumma" . "Pradyumma Kumar Tripathi" . "Kumar" . . "Pradyumna" . "Tripathi, P.K. (Pradyumma Kumar)" . "Pradyumna Kumar Tripathi" . "P. K. Tripathi" . . "Tripathi, P. K. (Pradyumna Kumar)" . "P.K. Tripathi"@nl-NL . "P." . "K." . "P.K" . . "Tripathi" . "P.K Tripathi" .