Explanation:

Muhammad Bin Tughlaq is known as a “Man of Ideas” and can be said one of the most striking sultan of medieval India.
 He is known for the idea of a Central Capital and experiments with a nominal token Currency. These ideas were all good, but he was in hurry and impatient of the slow adoption of his measures.
All those who could not keep pace with his imagination, became victim of his wrath and were punished severely. The result was that Muhammad Bin Tughlaq, as a sultan proved himself a complete failure before the history of forces toppled him.
We know about the period of Muhammad Bin Tughlaq from the material of Ziauddin Barni. Barni’s main works are Twarikh-i-Firuzshahi and Fatwa-i-Jahandari. We know about first 6 years of Tughlaq rule from Barni’s works.
Then another important work is left by Ibn Battuta. Ibn Battuta has discussed his travels and incursions in contemporary Islamic world and documented them in Rihla. He was appointed as Qazi by Muhammad Tughlaq and was also appointed ambassador to China. Ibn Battuta gives details about the later part of his rule. Portrait of Muhammad bin Tughlaq in Batutta’s words, “his gateway is never free from a beggar whom he has relived and never free from a corpse, he has slain”
Foolish Donor
Muhammad Bin Tughlaq generously scattered almost incredible wealth among the foreign visitors, learned men, poets, officials, beggars, diseased and so on. He impoverished the treasury. His project to conquer Persia (Khurasan Expedition), his dream to keep a huge standing army and his plans to invade China (Quarachil Expedition) finished his finances. His idea of invading China met with a disastrous in the passes of Himalayas where men and money got split like water.
Horrible Tax Reforms
The empty treasures needed fresh taxations. He wanted 5-10% more revenue from the Doab region which was the fertile land of his reign. The oppressive taxes reduced the farmers to beggars. They stopped tilling the lands, lost confidence and burnt their stacks. The cattle were turned loose and moved to Jungles. The Tax reforms of Sultan got failed.
The inconvenience to rule the wealthy Deccan induced the Sultan to take step and transfer the seat of the government to Daulatabad (near Pune). The idea might have been practical and reasonable if he had ever thought of shifting the official court of Delhi. But, he wanted to transport the whole population of Delhi to the new capital. The inhabitants of Delhi were made to leave their homes and were forced to march 700 miles down south with their women, children and all such belongings they could carry. Many were killed on the way in this forty days journey and few could survive. Daulatabad became the burial ground of the Sultan’s exiled subjects. Sultan got enough wisdom to realize his failure and ordered the people back to Delhi; result was only few could survive to return. Delhi’s houses were deserted now.