Dear Nanda RJ,
For getting a good rank you have to work really hard. It will be better if you can join some good coaching. It will really help you in getting your aim. be consistent with your studies and give importance to all the three subjects.
Please feel free to post as many doubts on our discussion forum as you can.
If you find any question Difficult to understand - post it here and we will get you the answer and detailed solution very quickly.
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All the best…………
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