At the epicentre of deadly protests in Assam, a red and white cloth has come to symbolise the struggle of the Indian state’s indigenous “sons of the soil” against a new citizenship law that they see as a dangerous threat to their unique culture.Traditionally worn by fishermen and peasants, millennials and others in the far-flung region have co-opted the gamosa, tieing it around their heads, their waists and emblazoning it with anti-government slogans.“This is like a flag for us,” said Jatin…