New Delhi, Aug. 15 -- The Supreme Court on Thursday refused to stay an order issued by the Centre authorising verification and detention of suspected illegal immigrants but sought a response from the Centre and states on having an interstate mechanism to ensure genuine citizens are not harassed while infiltrators are detained. The court considered the issue in a public interest litigation (PIL) filed by the West Bengal Migrant Workers Welfare Board where it was alleged that workers from West Bengal working in other states were being rounded up and detained on suspicion of being illegal Bangladeshi immigrants. The action by the states was pursuant to a May 2 notification issued by the ministry of home affairs authorising a nationwide drive t...