The Humanity United Against Terror Charity event would be held in New Jersey on October 15, the Republican Hindu Coalition said.
"Invited guests also includes Donald J Trump who will be the key note speaker at the event," the organisation said in a statement.
"The net proceeds of this event shall go to the victims of terror all across the world, with particular emphasis on the plight of 500,000 Hindu refugees that are victims of Islamic Extremist Terrorism," it said.