A close aide of top Maoist leader Kishenji and main accused in the Jharkhand MP Sunil Mahato murder case was arrested from a forest in Salboni in West Midnapore district on Friday.
Police stations along the Jharkhand and Chhattisgarh border have also been put on high alert after yesterday's incident and combing operations have been increased, he said.
Railway sources said several trains, including Tata-Patna express, were detained due to squatting in Chakradharpur, Tatanagar, Galudih and Gamariah.