Under Alauddin Khalji's market regulations, the official who superintended the market and enforced the fixed prices was the:

Under Alauddin Khalji's market regulations, the "Shahna-i-Mandi" was the superintendent of the market, who was responsible for enforcing the regulations and the fixed prices.

About the Shahna-i-Mandi:

• He was in charge of the markets, especially the grain market (mandi).
• He kept a register of the merchants and traders, and made sure that they brought sufficient goods to the market.
• He saw that goods were sold only at the prices fixed by the state.
• He was assisted by a staff of officials and soldiers.
• Alauddin appointed a trusted noble, Malik Qabul, to this post.

Measures to ensure supply of grain:

• The state collected land revenue in kind (grain) from the Doab and other nearby areas, and stored it in royal granaries in Delhi.
• Merchants (karwanis or banjaras) who transported grain were registered and made to live along the Yamuna with their families, under the control of the Shahna.
• Peasants were made to sell their grain to the registered merchants at fixed prices, so that no one could hoard grain.
• Hoarding (ihtikar) was strictly forbidden.
• In times of scarcity (such as poor rains), grain was released from the royal granaries and rationed.

Checks on officials:

• Alauddin received three independent reports on the markets every day: from the Shahna-i-Mandi, from the Barids (news reporters), and from his secret spies (munhiyans).
• This ensured that the officials could not hide any violations.

Results:

• According to Barani, prices remained stable throughout Alauddin's reign, even during droughts.
• The market reforms helped Alauddin maintain his large army.

Other officials:

• "Diwan-i-Riyasat": the department that supervised the markets, headed by a minister.
• "Muhtasib": a censor of public morals, who also checked weights and measures.

Why not the other options?

• ✗The Barid-i-Mumalik headed the news department.
• ✗The Amir-i-Hajib was the master of ceremonies.
• ✗The Muhtasib was a censor of public morals.