How did the entrance of the Aryans into the weakened Indus Valley differ from that of other pastoralist migrations into Egypt, Mesopotamia, or Anatolia?

Aryan did not immediately establish a large territorial state

Explanation:

Aryan are pastoralist nomads from Europe and Asia who migrated to India and finally settled, they slowly take over India unlike other pastoralist migrations into Egypt, Mesopotamia, or Anatolia who keep moving with warlike tendency. The Aryans adopted the agricultural skill of the people of Indus Valley and the people adopted the new comers' language