After analyzing each option, we can conclude that the correct answer is option 3, Devagiri. Alauddin Khalji, the ruler of the Delhi Sultanate, captured the Delhi throne after securing fabulous wealth from Devagiri. Devagiri, also known as Daulatabad, was a strategically important city in the Deccan region of India.

Option 1, Chanderi, is incorrect as Alauddin Khalji did not capture the Delhi throne after securing wealth from this place. Chanderi is a historical city located in present-day Madhya Pradesh.

Option 2, Gujarat, is incorrect as Alauddin Khalji did not capture the Delhi throne after securing wealth from Gujarat. Although he did invade Gujarat during his reign and acquired immense wealth, it did not directly lead to his capture of the Delhi throne.

Option 4, Madurai, is incorrect as Alauddin Khalji did not capture the Delhi throne after securing wealth from Madurai. Madurai is a city in the southern state of Tamil Nadu and was not a factor in Alauddin Khalji`s rise to power.

Therefore, the only correct option is option 3, Devagiri, as it played a significant role in Alau