You can start with the address, and then continue.
New Delhi 10089
(the name of school),
Subject: Application for a week's leave
Dear Sir/ Madam,
My son (his name), studying in class (class) has (the reason) due to which he may not be able to attend the school. I hereby apply for 6 days' leave for my son. I request you to pardon him for the leave of a week from date (write the date). Requesting you to accept this application, I assure you that he will catch up with all the work that he missed during his absence.
Hoping for a favourable consideration.
(your own name)
Modern High School
I am student of class x in your school. With due respect, I am suffering from fever since last night so cannot attend the school.
Kindly grant me leave for two days: 4.4.2010 and 5.4.2010.
Darya ganj Delhi
With due respect, I beg to say that I am student of your class 8th of your school. I am suffering from fever since last night. So I cannot attend the school.
Kindly grant me leave for two days 1.2.10 and 2.2.10 and oblige.
SUB: REQUEST FOR ONE MONTH LEAVE
My daughter (name of daughter) of class (standard and division) will not be able to attend her one month (September) study course in school due to a certain emergency for which we have got to leave for India for a period of one month.
Kindly grant the permission being requested
It should follow a format that looks a little like this:
Subject: Application for leave of absence from (Days) (Month).
My (Son/Daughter), (Name), a student of (The School) was unable to attend school from (Days) of this month due to (Cause of leave). I hope you would grant him/her leave of absence for those days only.
Sub- Application for leave
With due respect I, the mother of (son's name), student of class (standard) wishes to inform you that (son's name) is suffering from fever and so will not able to attend classes from (date).
Federal Govt Girls Higher Sec School,
Subject: SICK Leave
I want you to say that, I have fever I cannot come to school. Kindly grant me leave for one day I shall be very grateful to you.
With due respect I beg to say that I suffering from fever so I could not come to school, so kindly give me leave for 2 weeks.
I shall be thankful to you
X Y Z
Respected ... ,
My daughter (name), studying in class (xx) is suffering from common flu, so she'll be unable to attend the school from ... To ...
Grant her leave for ... Days.
Yours faithfully ,
a b c school
This is to bring to you a kind notice that I (name) of (class) of your school is suffering from (disease). Doctor has told me to take complete bed rest. So, please grant me a leave for two days until (date).
Hoping for a positive result.
Respectfully, it is stated that I am suffering from fever, so I can not come to school today. Please grant me leave for two days. I shall be thankful to you for your kind action.
My ward abcd is unable to present to the class from 11th April 2010 and will not be able to come back until the end of June 2010.
This is because she is in India with her mother to look after her grandmother, who is not well. So I request to your kind office to grant her leave for the aforementioned absence days.
Follow company policy - email may not be the best method.
Call the company and leave a voice mail message, or contact supervisor on telephone directly. If you send an email it may not be read in time, and it will be considered a 'no call, no show'.
Hope this helps! G.
I am down with H1N1 and cannot come to school today, unless you want me to spread the disease to my fellow schoolmates and teachers.