She is among the hundreds of Bangladeshis who have gathered over two days at Hakimpur in India's West Bengal state, police said, hoping to cross back as authorities tighten enforcement under a new state government.Prime Minister Narendra Modi's Hindu-nationalist Bharatiya Janata Party won power in West Bengal earlier this month promising to "detect, delete and deport" illegal migrants.The rush underscores growing anxiety among migrant communities -- many of whom lack proper documentation -- with rights groups warning of forced expulsions and limited legal protections.Many are in limbo, caught between Indian pressure to leave and Bangladesh's refusal to accept them without formal proof of citizenship.Many have waded across a river to return in desperation, although the scale of the exodus remains unclear.Last week, West Bengal authorities ordered the establishment of "holding centres" for "apprehended foreigners", including Bangladeshis and Rohingya, fuelling anxiety among the state's roughly 35 million Muslims."We have been asked to leave immediately, or the government will take stern action," said Hasina, 45, who worked at construction sites in Kolkata after entering India six years ago."We came to this city in search of a job. Now we want to return to Bangladesh, (but) we don't know what is waiting for us there," she said.Her husband tried feeding their child scraps of leftover bread as families huddled in an unfinished building near the outpost, some without proper food for days.