Dear Suhail,

In order to take admission in medical colleges you need to complete your 12th class or you should be appearing.

You have time to appear for medical colleges.

In order to take admission you have to appear for NEET exam. It is one of the competitive level exam you need to work hard to crack this exam.

You can start your preparation in 11th class. Syllabus is based on 11th and 12th class. You need to work on your basics. 

All the Best!!