In order to become Neurosurgeon, You need to complete first MBBS programme, There are three entrance exam NEET, AIIMS & JIPMER for medical programme, You need to apply any of the entrance exam to get admission for MBBS. As per the eligibility you should be completed or appearing class 12th with PCB.

Following MBBS, you need to go for postgraduate programme MS in General Surgery, it takes 3 years to complete. After finishing MS, you will need to do MCh degree in Neurosurgery. And then an year of practice to get your license to become Nurosurgeon.

Good Luck!