Respected Sir/Madam,
Most humbly, I would like to inform you that my name is ____________ (name) and I am studying in your esteemed university from the last __________ (years).
I am writing this email to request you to issue me with the marksheet for __________ (semester/year). I need this document for ____________ (mention purpose – personal record/higher studies/job purpose/other). In this regard, I request you to provide me the marksheet before __/__/____ (date).
If you need to contact me, feel free to contact me at _________ (contact details).
Thank you for your time and support.
Yours sincerely,
___________ (Name),
___________ (Roll number),
___________ (Contact Number)