KOLKATA: The security officials are planning to install special RFID sensors at the Nabanna entry gates to enhance vigilance. The upgrade comes after a recent security breach at chief minister Mamata Banerjee's Kalighat residence.
Some of the magnetic flap gates have already been brought to the south gate - used by employees to enter the secretariat - during this weekend. This technology is likely to be installed in the north gates too and will be operational by this month.
