Jackson Heights is under New York City. It's borough of Queens, New York. You will find all Bangladeshi, Indian, Pakistani Grocery, Restaurant, Halal meat are here. The people of Bangladeshi those who are living any other state near by New Yrok they usually shop here Halal meat, Deshi grocery etc are here at the weekend so at that time this is very crowded area.
Most of the Grocery, Restaurant are located at 72, 73, 74th Street between 37th Avenue and Broadway. All Grocery, Restaurant are open for 24 hour. All public transportation are here and also 24 hour you will find taxi too.
The following video taken from Jackson Heights.