( 1 ) THE State of West Bengal has filed an affidavit in which some of the causes for the infiltration of Bangladesh inhabitants have been pointed out. The learned Additional Solicitor General appearing for the Union of India submits that he would verify the facts as contained in the affidavit of State of West Bengal and seek further instructions in the matter from the Union of India. ( 2 ) THE matter of infiltration from Bangladesh and the presence of the infiltrators in certain regions in this country is a matter of serious concern. We hope that the Union of India and the States bordering Bangladesh will take effective steps to check infiltration and deport illegal infiltrators and inforates and they shall be asked to file their response by the next date of hearing.