Kolkata/Gurugram, July 23 -- West Bengal chief minister Mamata Banerjee on Tuesday criticised the Bharatiya Janata Party (BJP) after the Gurugram administration in Haryana detained 52 Bengali-speaking migrant workers on suspicion of being illegal immigrants from Bangladesh and sought background verification reports from the Bengal government. "Today, a notice from Gurgaon reached the district magistrates and police superintendents of Malda, South Dinajpur, North Dinajpur, Nadia, Murshidabad, Cooch Behar and North 24 Parganas. The Gurugram administration has detained 52 people from these districts and has asked our DMs and SPs to verify their backgrounds and send reports," Banerjee said at a press conference at Nabanna, the state secretariat. Assuring the public that there was no need to panic, she said, "It is our duty to protect citizens. If the BJP thinks this is how it can delete the names of voters and win elections, as it did in Delhi and Maharashtra, then it is making a big mistake." Her remarks came a day after she announced that a year-long "Bhasha Andolan" (language movement) would begin on July 27 in protest against the detention of Bengali-speaking individuals in BJP-ruled states. Banerjee alleged that several of the detainees had valid identity documents like Aadhaar and PAN cards yet were deported to Bangladesh by the Border Security Force (BSF) in June. The West Bengal police brought some of them back after verifying their Indian citizenship. "Any Indian citizen can go to any part of the country and work there. This is their right. They are hired for their skills. So many people from other states work here. They don't face any problem. Will it look good if we start enquiries against them? These illegal detentions are an insult to our mother tongue and ashmita (identity). This will be challenged in the proper time. Wait and see," Banerjee said. She also criticised BJP governments in the North-East, saying, "You are not arresting the Pahalgam terrorists. You have done nothing to restore normalcy in Manipur." In response, Gurugram police said they are following Ministry of Home Affairs (MHA) guidelines. "When a verification report is negative, we take steps to get the person deported. When it's positive, the person is set free," said Dr Arpit Jain, DCP (Headquarters), Gurugram....