Hi souvik,
It's not only about hours, it's also about concentration and clearance or topic. If you don't take any sort of coaching you must take someone books of any institute and do reading properly and collect the doubts and asked it from your teacher.
I think you must study at night till morning and do sleep in night.
My brother this year secure 650.(2 nd attempt)
And 560 in (1st attempt).
He take 2year coaching from harvin.

National Eligibility cum Entrance Test

Eligibility | Application | Result | Cutoff | College Predictor | Counselling | Answer Key | Accepting Colleges

Get Updates Brochure