Option 1: Alauddin Khilji. This option is incorrect. Alauddin Khilji was a powerful ruler of the Delhi Sultanate, but he did not shift his capital from Delhi to Daulatabad. He mainly focused on expanding his empire and strengthening his rule in Delhi.
Option 2: Muhammad Tughlaq. This option is the correct answer. Muhammad Tughlaq, a 14th-century Sultan of the Delhi Sultanate, shifted his capital from Delhi to Daulatabad in 1327. He believed that Daulatabad was a more strategically advantageous location for his kingdom. However, this decision proved to be unpopular and faced numerous challenges such as logistical difficulties and resistance from the nobles and the local population.
Option 3: Feroz Shah Tughlaq. This option is incorrect. Feroz Shah Tughlaq was the successor of Muhammad Tughlaq, but he did not shift the capital back to Delhi.
Option 4: Khizr Khan. This option is incorrect. Khizr Khan was the founder of the Sayyid dynasty and did not shift the capital to Daulatabad.
Alert - correct answer should be Muhammad Tughlaq.