What really happened to the I.V.C.?

While the textbook proposed that the fall of the Indus Valley Civilisation may be attributed to the invasion of the Aryan, this theory has been widely disproved.

Read this article to find out why.

Here is an excerpt:

"...as a result of several independent explorations conducted over a vast belt from southern Europe to India, it is now clear that civilizations over a large part of the ancient world were brought to a calamitous end by an abrupt climate change on a global scale. To attribute a global calamity of such colossal magnitude to nomadic 'Aryan' tribes is simplistic in the extreme."