How to make grammar file in English class 12?

 There are 1 grammar file in class 12th all india board exams 

Write an Application for school living certificate.

To 

The principal 

Govt.Higher secondary school Delhi 

Subject- Application for school living certificate.

Respect sir/Ma'am, 

I beg to say that I am a student of class 12th in your school.

My father has been transferred Delhi to Indore.So I can not Study here alone.

Kindly grant essu me my school living certificate.

Your's obediently 

SONAM GUPTA 

class-12th 

Section-A              Thanking you