The road outside Cotton University in Guwahati, the capital of India’s north-eastern Assam state, was filled with thick smoke from burning tyres on Monday and Tuesday as hundreds of students protested against India’s new citizenship amendment bill.The bill aims to grant citizenship to persecuted Hindus and other religious minorities from Muslim-majority neighbouring countries such as Pakistan, Bangladesh and Afghanistan who entered India illegally, but not to Muslims.It was passed by a majority…