MD and MS degrees are awarded by medical colleges affiliated with universities, while DNB (Diplomate of National Board) is awarded by the National Board of Examinations in Medical Sciences. Both are recognized postgraduate medical qualifications in India. However, DNB programs are usually conducted in accredited hospitals rather than traditional teaching colleges. The training structure, examination pattern, and clinical exposure may vary between MD/MS and DNB programs, but both qualifications allow doctors to practice and pursue further specialization.