The seven companies have been deployed in the districts of North Dinajpur, Malda, Murshidabad, Birbhum, East Midnapore, West Midnapore and North 24-Parganas.
Personnel of these 10 companies of the BSF would carry out route marches in "certain vulnerable pockets" to instill confidence among the voters.
However, the number of vulnerable pockets, which are decided on several factors including past incidents of violence, is still being assessed, Basu said.
The EC has already completed checking of EVMs in 11 out of 23 districts in the state, Basu said adding that the availability of the polling personnel was sufficient.
Jain will also hold a meeting with district election officers, superintendents of police and police commissioners to review the poll-preparedness.
He will also meet other central government officials for election purpose.
Basu said the EC's 'cVIGIL' app, through which voters can lodge any poll-related complaints to the EC, has so far registered 510 complaints of violation of model code of conduct in the state and they were being looked into.
The complaints received from the portals of the ECI and Citizens at National Grievance Services (NGS) are 184 and 232 respectively and they were mainly on defacement issues.
"Most of these complaints are resolved," Basu said.
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