Question

write an application to your Principal requesting him/her for a weeks leave to attend a sports camp.

Answer 1

I have written a format you can change it according to your choice by filling another information in the blanks .
You can make it for 1 day, 3days, 5days etc.

Answer 2

An application to your Principal requesting him/her for a weeks leave to attend a sports camp:

From

        XXXXX

        XXXXX

        XXXXX

To

      YYYYY

      YYYYY

      YYYYY

Respected sir,

               Sub: Permission to leave for attending sports camp

               Sir, as I am interested in sports I need to attend the camp which is organized for a week. So I can't attend the class for a weak. But while the date of returning I will complete my notes. So Grant me leave to attend Camp for a week.  

                                                               Thanking you,

                                                                                                   Yours faithfully,                                                              

                                                                                                        XXXXXX