"The population of all these states is meagre, just four per cent of our total population but they have made immense contribution to the nation," Mukherjee said, inaugurating a day-long cultural festival, "Songs and dances of North East", here.
Iterating the region's importance, the President said that people of the region had actively participated in the freedom struggle.
"They gave us eminent political personalities who have contributed and enriched our national lives," he said.
Mukherjee, who said he had visited almost all the states of the North East several times during his political career, appreciated the warmth and hospitality of the people and showered praise over the rich and diverse culture of the region's music and dance.
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"If you go to any part of the region, you will be mesmerised not only by the scenic beauty but also by the hospitality and courtesy extended by them," he said, adding, "They truly believe all human beings belong to one entity, Vasudhaiva Kutumbakam."
Hosted by the Meghalaya government and sponsored by the North Eastern Council, the festival seeks to bring the region closer to the rest of the country.
The states of Assam, Mizoram, Meghalaya, Tripura, Arunachal Pradesh, Sikkim, Nagaland and Manipur set up their stalls at the festival, which saw performances by leading music bands from the region.