Which Chauhan ruler captured Delhi and Hansi?

Vigraharaj-IV
Ajayraj
Arnoraj
Vigrahapala

The correct answer is A. Vigraharaj-IV.

Vigrahamalla, also known as Vigraharaj-IV, was the Chauhan ruler of Ajmer from 1150 to 1167 CE. He was a powerful ruler who expanded the Chauhan kingdom to include Delhi and Hansi. He was also a patron of the arts and literature.

Ajayraj was the Chauhan ruler of Ajmer from 1138 to 1150 CE. He was a weak ruler who was unable to prevent the expansion of the Delhi Sultanate.

Arnoraj was the Chauhan ruler of Ajmer from 1167 to 1173 CE. He was a short-lived ruler who was unable to maintain the power of the Chauhan kingdom.

Vigrahapala was the Chauhan ruler of Ajmer from 1173 to 1178 CE. He was a weak ruler who was unable to prevent the decline of the Chauhan kingdom.