"H P Singh" . "Singh"@en . "H."@en . . "Singh, H. P., Dr." . "H" . "P" . "Singh, H. P. (Hari P.)" . "H.P" . "Hari P. Singh" . . . "H. P. Singh"@en . "1950-07-02" . "P."@en . . "Dr. H. P. Singh" . . "H.P Singh" . "Hari" . . .