Invitation letter for standard visit visa application

Students who are studying in the UK or are on Graduate visa may invite their spouse, parents etc. to visit them in the UK on standard visit visa for up to 6 months. They need to write an invitation letter for this and provide certain mandatory information on it. The prospective visitor will require submitting this letter with their visa application. Students can write this letter on a plain piece of paper, sign by hand and send scanned copy to the prospect....