Hello Ananya

To be doctor you need to study MBBS course. For studying MBBS you need to get in medical College which admission is based on NEET medical entrance exam. Neet provides admission in both govt, private and abroad medical College. Without neet examination you can't study MBBS in India,you need to appear for neet and qualify the exam.

So first of all to get eligible for writing neet, you must choose bio stream, in simple words you must have physic, chemistry, biology as your subject in class 11th and 12th. Also in class 12th you need to score aggregate of 50% in PCB (p+c+b/total marks) in Gen category and aggregate of 40% in PCB for OBC/SC/ST category.

So basically you need to choose bio stream after your class 10th then you can prepare for neet entrance exam. Which you can give if you are an appearing students in class 12th also.

Syallabus for neet exam in whole NCERT chapter in all three subjects of class 11th & 12th.

There are many coaching centre in India which provide course for preparation of the neet exam. Most famous one are Akash in delhi, Allen in kota etc for offline classes and you can also learn online as platform like unacademy or YouTube teacher's.

You can also focus on class 11th & 12th being in school and after that you can join any coaching for neet entrance exam but mostly students they do both together due to High competition and high cut off marks in neet to get in govt medical College.

Hope i was able to help you

All the best