The Diplomate of National Board (DNB) is a postgraduate degree in medicine awarded by the National Board of Examinations in Medical Sciences (NBEMS) under the Ministry of Health and Family Welfare, Government of India, on completion of three-year training in any of 30 broad specialties. DNB is equivalent to the Master of Medicine (MD), Master of Surgery (MS), Doctor of Medicine (DM), and Master of Chirurgiae (MCh) in all purposes. Doctors who already hold an MD/MS/DM/MCh are eligible to directly appear in the DNB final examination.