PhD Que. Paper & Answer Key January 24, 2018 by P. Kalika Leave a comment NBHM PhD-2018 Que. paper Click here Answer Key 2018 NBHM Phd(Upto 2017) Click here. TIFR 2018 Question Paper download here Advertisements Share this:TwitterFacebookGoogleLike this:Like Loading... Author: P. Kalika Mr. Kalika is pursuing Ph.D. in Cryptography under Department of Mathematics, CUJ Jharkhand. Formerly, he is an alumnus of University of Delhi(UG) and Central University of Rajasthan(PG).