Hello,

In 2021 it is expected that the  entrance exam will be conducted in the month of April, 2021. But, the dates of the exam is still not announced. You can get the CHS entrance exam sets of previous years from the official site of BHU. After opening the official site of BHU, scroll down at the bottom of the page. You will find old question paper set section. From there you can download the question sets of your class.

Hope it helps!

Good luck!