Why Sardar Patel called the Iron man of India

Sardar Patel has delivered such a policy for protecting, uniting and developing country called Hindustan, after Kautilya Vishnu Gupta Chankya. When British govt has declare Independent by giving rights to princy state. British policy Intent to make India apart in to small princely states. So later on when ever needed these small staes can easily conqured by other countries. Patel have understood their policy very well and decided to make one united Independent country that can represent them self as republic of India. Patel said if we have power than we have to use to achieve goal. If these power is stopping you to achiving goal, you have to immediately leave this power which leads you to wrong direction. He met all states king and impressed with his devoteeness to the nation and ask them to join biggest democracy of the world. some states have declined to be part of India so that sardar has to use the power to make them surrender their states for India like example of Hydrabadi Nizam. Sardar said be part of India or get ready to fight against biggest army of th world. Kashmir issue left behind only when Nehru did not listen Sardar Patel and we are still suffering ugly policy of first prime minister of India (Javaharlal Nehru). He did not hesitate in using the policy of Saam-Daam-Dand-Bhed (friendship, give-and-take, punishment, and divide-and-rule) to achive goal that help building India.There are many other events have made him Lokhandi Purush means Iron man of India,