I am a bengali, in my country india many peoples say that you bengalis are nordic aryan group peoples?

they say false..aryan theory and concept is totally wrong. Only those people can say this who are not aware of true history of india and have studied wrong history book which was manipulated by britishers before independence. Even today we are studying the same thing. You are indian and the aryan were indian not outsiders. Today citizen of India is called Indian because our country name is India but in those days the name of our country was Aryavartha. So, the citizen of Aryavartha was called Aryan.