Letter / email Requesting To Work From Home

The Project Manager,

Dear Sir/ Madam,
Subject: Requesting permission to work from home due to unexpected illness.
I, Davinder Banerjee, working in thecafetechno, Allahabad, as a developer in your team, am writing this letter requesting you to allow me to work from home.
I am indisposed with unexpected stomach flu and I am unable to attend office today. Therefore I request you to grant me permission to work from home. I will be available on phone, and Internet all day long. I shall be back to office when I am fit to do so.
Taking this unexpected illness into consideration, I hope you’ll understand the situation and allow me to work from home till I recover.
Thanks and Regards,
Sincerely yours,
Davinder Banerjee