To many princes he talked convince them and in return give privy purses but with hyderabad hec took it by force.he almost got it for jk but due to inference by nehru could not be possible for which we are still paying heavy price for details read is biography or any book.
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Becoming the first Home Minister andDeputy Prime Minister of India, Patel organized relief and rehabilitationefforts in the riot-struck Punjab and Delhi, and leading efforts to restorepeace and security. Patel took charge of the task to forge a united Indiafrom a plethora of semi-independent princely states, colonial provinces andpossessions. Patel employed an iron fist in a velvet glove diplomacymdash; frank political negotiations backed with the option (and the use) ofmilitary action to weld a nation that could emancipate its people without theprospect of divisions or civil conflict. His leadership obtained the peacefuland swift integration of all 565 princely states into the Republic of India.Patel's initiatives spread democracy extensively across India, and re-organizedthe states to help transform India into a modern federal republic. His admirerscall him the Iron Man of India.