Explanation: Muhammad Tughluq (1325–51) even tried to make Devagiri (renamed as Daulatabad) as the capital to command the vast conquered territory more effectively.

• But his experiments failed and brought misery to the people. When he shifted the capital back to Delhi, his subordinates in the south declared independence.
• Thus, Madurai became an independent Sultanate in 1333.

Source: Tamil Nadu NCERT