Hello there,
This totally depends on how fast you can remember what you are learning. If you are a fast learner, then 6-7hours of study everyday is enough for you. In general, for an average student, 9-10 hours of study is enough. You need to study everyday, and keep enough time in hand for revision.

For the last one month, before your exam, you should not start any new topic. Instead, solve the 10years question papers, and try solving the class10 previous year question papers of your school. These are very helpful, and you will definitely get common questions from there.

Also, you should get enough rest. You should sleep atleast 6-8hours a day. Else, if you fall sick before your exam, all your efforts will go in vain.

Don't panic. Study well. Also eat healthy food and sleep in time, so that you do not fall sick and your mind remains fresh.

Hope this answer helps you.
Good luck!!

Hello Dear,

There's no fixed hour of study or sleep which you need to take for class 10th ICSC board exam preparation. The number of hours you devote depends on your capacity and learning speed. However, it is advised to take a minimum sleep of 6 hours a day and study for atleast 6-8 hours a day or even more depending on the time you take o grasp things. Please ensure that you study all the subjects and clear your concepts with repetitive revision. And also take some time off to relax yourself.

Good Luck