Hello student ,

As you have not mentioned where you to take leave that 's why it is little bit tough to guide you because ever department has different rules of providing leave . So I will suggest you that ask your question again like where you want to take leave so that we can help you  . But still leave is granted only if you have any solid reasons like your health issue or something like that .

Hope you are getting my point , for more query feel free to ask !

Good luck !