PHOTON-20 App is a first of its kind in the genre of PGME Examinations. The App covers 1000 questions as Subject-Wise Challenge and Grand Challenge. This will provide you a glimpse and real-time experience of the examination, while you can browse through it sitting anywhere, anytime and is very helpful in your last minute revision. This book covers 3300 IBQ’s with explanation. The book is highly accepted by all PGMEE students.