West Bengal Chief Minister Mamata Banerjee called in two columns of the Army in Darjeeling last week after supporters of the Gorkha Janmukti Morcha (GJM), the BJP ally that is the dominant political party in the hills, threw stones at the police who lathi-charged and tear-gassed them. Banerjee, who is in Darjeeling, stayed back there to ensure that tourists exited safely. Banerjee’s decision last week that Bengali would be made compulsory in schools from classes 1 to 10 had angered the inhabitants of the hills. She did a bit of a roll-back and said later that Bengali is not a