Explanation:

Balban 

• Balban, who was the ninth sultan of the Mamluk dynasty of Delhi, adopted the policy of Blood and Iron to tackle the law and order situation in the area around Delhi and in the Ganga-Yamuna doab.
• The Mewatis had become so bold as to plunder people upto the outskirts of Delhi.
• As a result of his policy of blood and iron, robbers were mercilessly pursued and put to death.