Write an application to the Principal of your school requesting him to grant you leave of four days as you want to attend the marriage of your elder brother.
The Principal Bal Bharti School Mathura, UP Subject- Leave application for four days Respected Sir, With due respect, I beg to say that I am a student of Class Xth of your school. I have four days leave as I have to attend the marriage of my elder brother that is scheduled for 1st July in Agra. Kindly grant me leave for four days from 2nd July to 5th July. I shall be highly obliged to you for this. Thanking you Yours obediently, XYZ 1st July, 20XX
(Do not write your Name and Place)