What are the Steps to become an opthalmologist?

You haven't mentioned which class are you studying in right now. But Opthamology is a Speciality that you study after studying MBBS. Now to study MBBS, you should appear and qualify in NEET. NEET is the entrance examination for admission to MBBS,BDS, Ayush and Veterinary courses across India. And to be eligible for NEET, you should have completed your 12th, passed in all subjects and secure a minimum aggregate of 50% in Physics, Chemistry and Biology. It is 50% for General Category, 45% for PWD and 40% for OBC,SC,ST. Now if you belong to OBC Category, the Category you belong to should be also listed in the Central OBC list. Or else you will be considered as General Category and so you have to secure a minimum aggregate of 50% in Physics, Chemistry and Biology. This 50% is inclusive of the Theory and Practical marks scored in Physics, Chemistry and Biology collectively. You needn't score 50% in Physics, 50% in Chemistry and 50% in Biology separately. You need an aggregate of 50% or 40% depending on your Category as an aggregate in Physics, Chemistry and Biology. And along with Physics, Chemistry and Biology, you should also have studied English as one of the core subjects in your 12th. Now once you join MBBS, it is a 50 month course and you have to complete mandatory 1 year period of Rotational internship. And then you have to appear for relevant Master's entrance examination. Right now, it is NEET PG but this will bbe scrapped in the next 3 years in favour of NEXT exam whose details are yet to be announced. And you have to take Opthamology as a speciality in your MS to become an Opthamologist.