The BJP has called for a 12-hour shutdown in the state on September 26 to protest the alleged murders of students.
The Mamata Banerjee government had put 64 files on Netaji that were with the state Home Department in the public domain on September 18, 2015.
The BJP had won the 2014 Lok Sabha polls by securing 31 per cent votes but it cannot be repeated, she claimed.
The chief minister is likely to return on September 28, they said.
"Today is International Day of Democracy. It anguishes me that our country is currently going through a 'Super Emergency," Banerjee posted on Twitter.
Addressing the media, MEA spokesperson Raveesh Kumar said that the government did not receive any request for clearance of her visit.
Over the last two years, there has been a certain amount of dissatisfaction among Hindu voters in West Bengal.
CM Mamata Banerjee restricts use of weapons during Muharram in West Bengal
At a meeting with representatives of Durga Puja organising committees in Kolkata on Monday, Banerjee also announced plans for the second edition of the 'Bishorjon Carnival'.
A part of the 50-year-old bridge on the arterial Diamond Harbour Road caved in on Tuesday evening trapping several people and crushing many vehicles.
"Bengal has protested against the situation in Assam and will continue to do so. We all are Indian citizens. If they try to drive out even a single Indian citizen, we will not spare them," she said.
OMG: Mamata Banerjee, Amit Shah gear up for Mission Bengal
Speaking to reporters at the state secretariat in Kolkata, she said the three parties had deliberately resorted to a false propaganda.
The apex court also set aside the Calcutta High Court order allowing filing of nomination papers through e-mail, WhatsApp in West Bengal panchayat polls.
Out of a total 58,692 posts for gram panchayat village, zilla parishad and panchayat samiti, 20,159 of them had remained uncontested in the violence-marred local polls in the state held in May this year.
Banerjee said those who have been staying in the country for years were "branded as infiltrators". She alleged that BJP has carried out the exercise with an eye on the Lok Sabha elections 2019.
She also said farmers' distress will be compounded as the rupee fell further on Thursday to a new record low beyond Rs 70.20 against the dollar but recovered somewhat later.
"Unfortunately, most Indian citizens left out of the draft National Register of Citizens (NRC) in Assam speak Bengali (language)... Out of over 40 lakh persons left out, around 25 lakh are Hindus and 13 lakh Muslims who speak Bengali," she told repor
Asking Congress President Rahul Gandhi to clearly spell out his stand on the NRC in Assam, BJP President Amit Shah asserted that his party was committed to completing the registration process.
Posters asking the 'BJP to leave Bengal' were seen put up in and around Amit Shah's rally venue at Mayo Road.
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