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KOLKATA: India has deported nearly 5,000 Bangladeshi citizens since Prime Minister Narendra Modi’s Hindu-nationalist party swept to power in West Bengal last month, according to official statistics.

The Bharatiya Janata Party (BJP) won a sweeping victory in elections in the eastern border state of more than 100 million people, promising to “detect, delete and deport” illegal migrants.

India shares a long and porous border with Muslim-majority Bangladesh, where migration has historically been driven by economic hardship and longstanding family links.

On taking power, the new West Bengal government ordered the establishment of detention centres for undocumented Bangladeshis and Rohingya refugees, a mainly Muslim people who fled persecution in Myanmar.