What is the measure/ checking procedure for the letter of the sponsor?
There is actually no formal procedure to check the letters. All has to be trusted as you put forward. Mainly the officer interviewing you will find out about all the documents through your talk and original letter. They can confirm by Phone/ fax/ email if they get any doubt about any document. Normally they just check the documents on spot. But due to many fake bank statement they usually contact the main branch of the bank or state bank and confirm the bank statement.
