Modi made a scathing attack on Prime Minister Manmohan Singh after inaugurating a hospital here which is run primarily by the minority community.
"Mr Prime Minister, I am aware that it is not in your hands what you should say or not say. But the country wants to know who changed the geography of India. The village in which you were born was a part of Hindustan. Today it is not. Who changed the geography. Who broke this country into pieces?" Modi said.
Singh was born on September 26, 1932 in Gah, a remote village, now in Pakistan's Punjab province.
Modi charged that it is the Congress which committed the "sin" of dividing India into two parts.
"You say we are changing the geography. Every so often China creates problems at our borders. It has captured hundreds of square kms of our territory. Who changed this geography? It was changed during Congress rule," Modi said.
He further alleged that the Centre wants to change the route of the Sabarmati-Dandi heritage road that is to be constructed to mark the salt satyagraha underaken by Mahatma Gandhi.
"Six months back I received a letter from PMO that the path be shifted 30 kms away... You have abandoned Gandhi and now you want to leave the path too," he said.
Modi also attacked the PM and the Congress on the issue of history. He charged that Sardar Patel was given the Bharat Ratna 41 years after his death while Jawaharlal Nehru and Indira Gandhi were given the award when they were alive.
He also alleged that the First War of Independence which took place in 1857- "and in which Hindus and Muslims fought together"- is called a Mutiny in Congress' ideology.
The freedom fighters incarcerated in the Cellular jail of Andaman and Nicobar Islands are now forgotten, he said.
"Who has done this work of making people forget history?" he said.