This book offers authentic questions of GDMO 2015 entrance examination till date with correct answers and exhaustive explanations. This book includes detailed explanations with references from standard textbooks of MBBS and PG. For questions with more than one correct answer, references have been provided from multiple sources which will help readers to answer correctly in entrance examinations with balanced judgment. The explanations provided in this book have been formulated after exhaustive discussion and scrutiny by faculty members, students, and aspirants of PGMEEs who have been preparing or have appeared for different entrance examinations and/or have already succeeded.