The last Tughlaq ruler was Nasir-ud-din Muhammad Shah (1394–1412), whose reign witnessed the invasion of Timur from Central Asia.  

• Turkish Timur, who could claim a blood relationship with the 12thcentury great Mongol Chengiz Khan, ransacked Delhi virtually without any opposition.  
• On hearing the news of arrival of Timur, Sultan Nasir-ud-din fled Delhi.  
• Timur also took Indian artisans such as masons, stone cutters, carpenters whom he engaged for raising buildings in his capital Samarkhand.  

• Nasir-ud-din managed to rule up to 1412. Then the Sayyid and Lodi dynasties ruled the declining empire from Delhi till 1526. 

Source: Tamil Nadu state board