The Bharatiya Janata Party leader said Bengal had traditionally been the land of knowledge and awakening.
"While the 21st century is being seen as the century of knowledge world over, knowledge dawned in Bengal in the 18th century. This extraordinary land has always given strength to the society to fight social evils.
"The whole country was illuminated by the light of knowledge that came from Bengal. Even the call for armed revolution against the British came from Bengal," said Modi.
He also said that every second freedom fighter imprisoned at Andaman's Cellular Jail during the British regime was a Bengali.
"The British entered India through Surat but to chose to settle in Kolkata for they knew they can do nothing if they don't settle in Kolkata.
"So whoever plans for the growth of the country, has to realise the potential of Bengal," added Modi.