'They are not Bangladeshis': Mamata says Bengal migrants wrongfully held; slams BJP

West Bengal Chief Minister Mamata Banerjee claims Bengali workers are wrongly identified as Bangladeshis and deported. She accuses the BJP of language-based politics. Banerjee says her government has rescued some workers. Recent crackdowns in Delhi saw the arrest of suspected illegal immigrants. Banerjee previously accused the BSF of aiding infiltration.