With all due respect, I am _______ (your name) student of your school having student registration number _________ (student registration number).
Courteously, I write this email to inform you that recently I have decided to apply for ________ (course name/higher studies/any other). This is to request you to issue me a transcript regarding the same. I have attached my ________ (mention required documents – documents/certificate/other – if applicable) for your reference.
Kindly, accept my request and process my request for the same as soon as possible. If you need any further information, please let me know at your earliest convenience.
Thank you for your time and consideration.
__________ (Contact details)