This book is primarily for the students preparing for the most coveted National Talent Search Examination. It aims at being an exhaustive storehouse of all the relevant topics to be asked in this examination. The book has been divided into The Mental Ability Test & Language Test, Scholastic Aptitude Test and The Model Test Papers. The Mental Ability Test has been further divided into Verbal and Non-Verbal Reasoning. The section of English Language Test has been covered with the basic knowledge of English Grammar and Common Errors. The section of Scholastic Aptitude Test has been divided into eight parts with various topics of Mathematics, Science and Social Science.