Identify the Sultan who started the practice of putting on the tanka the name of the mint town:

Correct option is B

The correct answer is (B) Iltutmish

Explanation:
• Shamsuddin Iltutmish is considered the real consolidator of the Delhi Sultanate. He was the first to introduce a purely Arabic coinage system in India.
• He introduced the silver 'Tanka' and the copper 'Jital'. A significant innovation he brought was the inscription of the name of the 'Mint' (place where the coin was made) on the coins.
• This practice helped in standardizing the currency and established the central authority over various provincial centers.
• His coins also bore his name and the name of the Abbasid Caliph of Baghdad, from whom he had received the 'Mansur' (letter of investiture) in 1229 CE.

Information Booster:
• The Silver Tanka of Iltutmish weighed approximately 175 grains.
• He also introduced the Iqtadari system and the Turkan-i-Chahalgani (Group of 40).

Additional Knowledge:
• Qutbuddin Aibak (Option A): He did not issue any coins in his own name; he mostly used existing local currency.
• Alauddin Khalji (Option C): Known for his market reforms and standardizing weights, but the mint-naming practice was already established by his time.
• Muhammad bin Tughlaq (Option D): Famous for his 'token currency' experiment (using brass/copper for silver value), but he is not the originator of mint-naming on the Tanka.