DEAR HARENDER,

You have to devote atleast 4-5 hrs of self study for IIT-JEE .That is mandatory. For Boards if you study in school attentively that is enuf. You can give 2-3 hrs daily for that if u want...

We are all IITians and here to help you in your IIT JEE preparation.

All the best.

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Sagar Singh

B.Tech IIT Delhi