Once, releasing the book "President Pranab Mukherjee - A Statesman", PM Modi gave a sneak peek into the special relationship the two shared. He had said, "I am saying this from deep within. Like a father caring for his son...." Modi went on to elaborate, "It was during the Uttar Pradesh polls that he told me that win and loss happen all the time but will you take care of your health or not? It was not part of his responsibilities as President, but it was the humane person inside him which cared for a friend."