This comprehensive book is specially developed for the candidates of CSIR-UGC (NET) General Aptitude (Science Stream) for Chemical Sciences; Earth, Atmospheric, Ocean and Planetary Sciences; Life Sciences; Mathematical Sciences and Physical Sciences "Part-A" Examination. This book included Study Material & Previous Papers for the purpose of practice of questions based on the latest pattern of the examination. Detailed Explanatory Answers have also been provided for the selected questions for Better Understanding of the Candidates. _CONTENTS_:- Previous Year Papers (Solved) June 2017 & December 2016; Quantitative Reasoning; Non-Verbal Reasoning; Analytical and Numerical Ability; Graphical Analysis; General Science; Research Aptitude.