Please clarify your query by providing your Class and board name. So that we can help you in a better manner.
If you are asking about Bihar board 10th June session open school exam, then you should know that its BBOSE exam form can be submitted until April 15, 2021.
Let us know about the examination you want to give and the state you live in so that we can gather information accordingly and provide you the correct details. You can even visit the official website of the examination/college or can just comment down further details so that we can help you out