GENERAL KNOWLEDGE

Detailed explanation-1: -"What seems to be practically unknown is that Chanda, the originator of the idea of Aryan annihilation of Harappans, substantially abandoned his original hypothesis within a few years.

Detailed explanation-2: -British archaeologist Mortimer Wheeler believed that the Harappan civilisation came to an end due to the invasion of the Aryans, a nomadic, Indo-European tribe.

Detailed explanation-3: -The Aryan Invasion Theory is a hypothesis developed in the 20th century that states that a group of people called Aryans invaded northern India and destroyed the Indus Valley Civilization.

Detailed explanation-4: -The Aryan migration theory says that the groups of nomadic tribal people from regions outside Indian sub-continent started migrating towards India around 1700 BC. These people are called Rig-Vedic Aryans because they brought with them the earliest portion of collection of hymns as Rig-Veda.