Question

what activities were prohibited by Alauddin Khilji to keep the nobles in check​

Answer 1

The nobles were required to take permission from the Sultan before forming matrimonial alliances or even hold parties or festivities. The use of wines and intoxicants was officially banned. Gambling was disallowed by the Sultan and gamblers were punished severely.

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Answer 2

Wines and intoxicants

wines and intoxicants activities were prohibited by Alauddin Khilji to keep the nobles in check .