Wedding invitation letter is required by some embassies, as a part of application packing for visa granting. We here principally refer to the US and some European embassies, who will require you to show wedding invitation letter in order to submit the application letter for visa. This letter is required for a B2 visa for USA, which entail trips for pleasure, tourism and visits. Even though some embassies are not imposing a formal requirement regarding wedding invitation letter, if the main purpose of your visit is to attend a wedding ceremony of your loved ones you should submit the copy of the letter to the Embassy, because it might help your application. Please note that the Embassy does not stipulates specific and