How to write a letter to get Bonafide certificate?

To
       The Principal
       (College)

Respected Sir/Madam/Principal,
                            Sub: Bonafide Certificate – Regarding
        I, (Name), Son/Daughter of (Father’s name), Studying (Class) in (College name) need a bonafide certificate to (reason). So, I kindly request you to issue me a bonafide certificate.
                                                Thank You
Date: __________                                                                                 Yours truly
Place:__________                                                                               (Your Signature)

Example for the Letter:

From
Gokul Deepak S.
04MAT52
The American College
Madurai.
To
The Principal
The American College
Madurai
Respected Sir,
Sub: Bonafide Certificate – Regarding
I, GokulDeepak, Son of Sathiamoorthi, studying Bachelor of Science in Maths at The American College need a bonafide certificate to apply for my passport. So, I kindly request you to issue me a bonafide certificate.
Thank you
Date: 15/10/16                                                                                         Yours truly
Place: Madurai                                                                                       S. Gokul Deepak

Note: 1) There should not be any comma( , ) after From and To and there is no Apostrophe ( ‘ ) in yours.
2) Saying thanking you became old fashion. So Just Thank you is enough.
3) Instead of obediently, faithfully use truly.