Hey Aman,

Change of centre is mostly not possible but you can change your centre for the entrance examination by directly contacting the upper body conducting that entrance examination, For example- If you are giving the JEE MAINS examination then you will have to contact the CBSE board for changing your centre. This should be done through the Email as soon as possible. You should have a valid reason to change your centre otherwise you will not be able to change your centre. I hope you have got your answer.

Good luck for your examination !