No, most historians agree that the decline of the Harappan civilization and the arrival of the Aryans is separated by around 500 years.
The Aryan 'Invasion' Theory is one that was concocted by the British and is not actually based on any scientific evidence. The wide consesus now is that it was more of a slow migration than a invasion.
Regarding the linked paper, there is no concrete evidence that Harappan was a Dravidian language.
The Aryan 'Invasion' Theory is one that was concocted by the British and is not actually based on any scientific evidence. The wide consesus now is that it was more of a slow migration than a invasion.
Regarding the linked paper, there is no concrete evidence that Harappan was a Dravidian language.