Who is known as 'Indian Bismarck'?

Sardar Vallabhbhai Patel is known as the 'Bismarck of India' due to his efforts of consolidating the fragmented parts of a divided India i.e. Princely states and British India into a nation and prevented balkanization of India. Sardar was also known as the Iron man of India. A 182 metres high statue has been recently built as his memorial in state of Gujarat.