One of my cousins graduated from NIMHANS and according to him, here are the courses available for an MBBS doctor in NIMHANS. 

• MCh in Neurosurgery
• DM in Neurology
• MD in Psychiatry
• Fellowship in Psychiatric Rehabilitation
• Ph.D. in Clinical Neurosciences
• M.Phil in Neurosciences
• Ph.D. in Neurophysiology
• M.Phil in Neurophysiology
• M.Phil in Biophysics

If you are interested in research you can choose Ph.D. in Clinical Neurosciences or Ph.D. in Psychiatry. There is a direct entry after MBBS for MCh in Neurosurgery apart from DM in Neurology and MD in Psychiatry.