If you want to join army, then you need to study at AFMC (Armed Forces Medical College) which is situated in Pune. Before AFMC used to conduct entrance examination by itself but now the admission is done partially on the basis of NEET score.

The eligibility criteria for the course:

1. He/she must be a Citizen of India.
2. He/she must be unmarried throughout the course.
3. He/she should be medically fit according to the criteria issued by the Ministry of Defence.
4. He/she should have completed 17 years of age but should not be more than 22 years of age (24 years if you're doing a BSc degree and are in final year/have passed).
5. Achievement of at least 60% in PCB and 50% individually in each subject along with English. Also, he/she should have passed all the subjects in their first attempt. Passing in Mathematics in 10th standard is also required.

The admission process is of 3 steps. First you have to apply as per your NEET score. If you get selected then you will be required to sit for a CBT examination in which you would be asked question from English, Logical reasoning and you have to answer 40 question in 30 minutes. The marks in NEET and the online examination will be added and divided by 4 in order to get a marks in 200. Based on that you will be called for an Interview which will comprise of 50 marks. If you qualify interview then you have to study the course in AFMC and after that only you can be an Army doctor.

The seats at AFMC are very less (105 seats for Male candidates and 25 for Female candidates).

To know more about AFMC visit the link below:

https://www.careers360.com/colleges/armed-forces-medical-college-pune

I hope this answer helps. All the very best for your future endeavors!