Who was the Delhi Sultan who imposed a tax on Brahmins?

Who was the Delhi Sultan who imposed a tax on Brahmins?

دہلی کا سلطان کون تھا جس نے برہمنوں پر ٹیکس لگایا؟
Explanation

The Delhi Sultan who imposed a tax on Brahmins was Feroz Shah Tughlaq.

He implemented this tax as part of his administrative reforms to increase state revenue.