The sponsorship letter for English speaking countries should if possible be in English, or if not, it must be accompanied by an English translation.
The sponsor’s full name and address
Why he is sponsoring your dependant; for instance a relative or friend
What course you are going to study
Sponsor’s income proof; Bank statement of previous 6 months, Income tax certificate, salary slip or any other document which proof the financial stability of sponsor
Proof that he or she is happy to provide financial support to the student .
The Visa Officer
Dear Sir / Madam: