दिल्ली के निम्नलिखित सुल्तानों में से किसने कड़े मूल्य नियंत्रण उपायों को लागू करने के लिए विभिन्न वस्तुओं के लिए तीन अलग-अलग बाजार स्थापित किए थे?

Which of the following agricultural land taxes was collected during the Delhi Sultanate?

Which Sultan was criticized by chronicler Ziyauddin Barani for appointing low-born and non-aristocratic people such as cooks, barbers, and gardeners to high administrative posts?