The correct answer is b) Ala-ud-din Khalji.

Ala-ud-din Khalji was a powerful and influential sultan of the Khalji dynasty who ruled the Delhi Sultanate from 1296 to 1316 AD. He is known for his strong and autocratic rule. To maintain his power and control, he took several measures, including banning banquets and assemblies and establishing an extensive spy network throughout the country.

Below are the details explaining why Ala-ud-din Khalji banned banquets and assemblies and peppered the country with his spies:

**Banquets and Assemblies Ban:**
- Ala-ud-din Khalji banned banquets and assemblies as a measure to prevent conspiracies against his rule.
- Banquets and assemblies were often attended by nobles, courtiers, and other influential people who could potentially plot against the sultan.
- By banning these gatherings, Khalji aimed to eliminate the possibility of secret meetings and discussions that could undermine his authority.
- This ban helped him to control and monitor the activities of the nobles and prevent any organized opposition.

**Establishment of Spy Network:**
- Ala-ud-din Khalji established an extensive spy network in order to gather information and keep a close watch on his subjects.
- He appointed spies and informers known as "Barids" who were responsible for collecting intelligence from different parts of the kingdom.
- These spies were spread throughout the country and reported directly to the sultan.
- The spies provided valuable information about any potential conspiracies, rebellions, or threats to the sultan's rule.
- The intelligence gathered by the spies helped Khalji to take preemptive actions against his enemies and maintain a strong grip on power.

**Reasons for these measures:**
- Ala-ud-din Khalji faced several challenges to his rule, including internal opposition from powerful nobles, external invasions, and rebellions in different parts of the kingdom.
- He implemented these measures to consolidate his power, suppress any dissent, and prevent any organized resistance against his rule.
- By banning banquets and assemblies, he eliminated the opportunities for nobles and other influential people to gather and plan against him.
- The establishment of a spy network helped him to identify and neutralize potential threats before they could become significant challenges to his rule.

In conclusion, Ala-ud-din Khalji banned banquets and assemblies and established a spy network as measures to maintain his power, suppress dissent, and prevent conspiracies against his rule. These measures were aimed at consolidating his authority and ensuring stability in the Delhi Sultanate.

Alauddin Khilji