India’s ruling Hindu-nationalist party has ordered detention centres for undocumented Bangladeshis and Rohingyas in West Bengal state, sparking fear among minorities that it could lead to arbitrary expulsions. The directive comes just days after Prime Minister Narendra Modi’s Bharatiya Janata Party (BJP) won power in the eastern state for the first time since the country’s independence in 1947. The order calls on local authorities to set up “holding centres” for “apprehended foreigners” awaiting