"About 40 to 45 Maoist ultras under the leadership of Tara, wife of Maoist leader Bikash, are regrouping at an undisclosed location in Saranda forest in Odisha to renew attack in West Bengal," state police sources said quoting the intelligence input.
The sources said that several political figures like Srikanta Mahato and Mrigen Maiti, both Trinamool Congress MLAs in Jangalmahal, had been chosen as targets by the Maoists.
"Security to these leaders have been tightened and measures initiated to strengthen the security net at the Jangalmahal area," the sources said.
Following an MHA caution on possible Maoist threat against Mamata Banerjee, the security of the chief minister has also been beefed up.
Several other VVIPs have also been brought under the special security net, while special vigil around vital installations in the state had been arranged, the sources said.