Final year MBBS has become an increasingly tough year with lots of topics, clinical cases and management. So it becomes very important to master the essential cases with correct management to pass this hurdle.GEMS is an effort from the medical students of 50th Batch of Calicut Medical College, Calicut, Kerala, India, who had felt the hardships of final MBBS and the utmost need for such a manual. A book meant to cover all the relevant areas in short time as it is almost impossible to pick the gems from the ocean floor in such a short notice.