Solution:
Address & Date: Your address top-right; date below.
Recipient's Address: Principal's and school's name on the left.
Salutation: "Respected Principal" or "Dear Sir/Madam."
State Purpose: Clearly mention why you're writing.
Provide Details: Briefly explain the reason.
Conclude: End with hope for a positive response.
Sign Off: "Yours sincerely" followed by your name.
Proofread: Check for errors.