Low pass rate. The final exam is considered tough and the pass rate is generally at 15 to 20%.
Less surgical exposure. In some institutes DNB residents are not given enough exposure and independence while working. Specially in surgical branches.
Problems in private practice: There is less recognition among the general public about DNB degree. So a doctor might face some difficulty early on if he/she starts a private clinic. However, this is changing fast.
Teaching job in Medical college: Some medical colleges demand work ex from DNB holders to start teaching while MD/MS holder have no such condition.