When applying for a visitor visa, if you are working somewhere, it is helpful to get a sample no objection and leave sanction letter. This is especially more useful if you are in a government job. Such a letter should be on the official letterhead of the employer and signed. It does not have to be notarized. June 12, 2005. American Consulate General, Mumbai Lincoln House 78 Bhulabhai Desai Road Mumbai .