Coins minted at Delhi under the Tomara and Chauhan rulers, which had a wide circulation, were called:

Coins minted at Delhi under the Tomara and Chauhan (Chahamana) rulers were called "dehliwal", and they had a wide circulation.

About the dehliwal:

• NCERT notes that Delhi first became the capital of a kingdom under the Tomara Rajputs, who were defeated in the middle of the 12th century by the Chauhans of Ajmer.
• It was under the Tomaras and Chauhans that Delhi became an important commercial centre.
• Many rich Jaina merchants lived in the city and constructed several temples.
• Coins minted here, called dehliwal, had a wide circulation.
• These coins were made of billon (a mixture of silver and copper).
• They often carried the image of a bull on one side and a horseman on the other, a design inherited from the Hindu Shahi coins.
• The early Delhi Sultans continued to mint similar coins for some time.

About the Tomaras:

• The Tomara dynasty ruled the Delhi region (Haryana) from about the 8th to the 12th century.
• According to tradition, Anangpal Tomar founded (or re-founded) the city of Delhi in the 11th century, calling it "Dhillika".
• They built the fort of "Lal Kot", the earliest known fort of Delhi.
• They were defeated by the Chauhans in the mid-12th century.

About the Chauhans:

• The Chauhans (Chahamanas) of Ajmer conquered Delhi around the mid-12th century.
• Prithviraj Chauhan expanded Lal Kot into "Qila Rai Pithora".

Delhi became the capital of the Sultanate:

After the Turkish conquest, Delhi became the capital of the Delhi Sultanate in the early 13th century.

Coins of the Sultanate:

• The early Turkish rulers introduced new coins, gradually replacing the older types.
• Under later rulers, the "tanka" (silver) and the "jital" (copper) became the standard coins.
• The "dam" was a copper coin of the Mughal period, introduced by Sher Shah and Akbar.

Why not the other options?

• ✗The tanka and jital were Sultanate coins.
• ✗The dam was a later copper coin.