the Hindu religion originated in India. there is an old wives tale; At first Indians were all called hindus, but as time went on, Indians converted to other religions. people started to find out that sayin Hindu, sounded similar to indu, therefore we are called Indians. pleasure Miss.DQ
The Brihaspati Agama says: "The land created by the gods which stretched from the Himalayas to the Indu (i.e. Southern) ocean is called Hindusthan, with the हिंदु (Hindu) mentioned in word हिंदुस्थानं (Hindusthan)."