Assam Director General of Police Bhaskar Jyoti Mahanta on Sunday said the 17 Bangladeshis arrested from Biswanath district were held for indulging in “religious preaching” in violation of tourist visa norms. There had been several instances of ‘mullahs’ from the neighbouring country entering the state on tourist visas and engaging themselves in religious preaching, including spreading radical ideals, the DGP …