The Centre has asked naxal affected states to take all precautionary steps to thwart any attempt of violence by the Maoists, in view of the two day bandh called by them from tomorrow. The railways have also given a general security alert with detailed instructions to ensure the protection of its properties, rail tracks and passengers during the 48 hour bandh.<br/><br/>Quick response teams have been deployed at sensitive stations and track patrolling intensified. The night operations of trains carrying passengers in the naxal affected areas will continue to remain suspended and speed restrictions have been introduced at sensitive segments of society. <br/><br/>Railway running staff has also been asked to remain extra vigilant and alert. Zonal and divisional level officials of RPF have been coordinating with state Government Rail Police, GRPs to ensure that no untoward incidents takes place. <br/><br/>The railways have also cancelled four trains and diverted the routes of six trains Our correspondent says that the security measures by the railways comes as nearly 150 people had lost their lives following the derailment of Jnaneshwari Express in West Bengal by Maoists on the 28th of May. The bandh call by the Maoists is to protest the killing of Naxal leader Azad in Andhra Pradesh last week.<br/><br/>Meanwhile, in West Bengal Security Measures have been beefed up at Jungal Mahal in the State in view of two days nationwide strike called by the Maoists from tomorrow. The Director General of Police Mr. Bhupinder Singh told newsmen in Kolkata this evening that camps of the Joint forces engaged to tackle Maoists activities and Police Stations at Maoists infested West Midnapore, Bankura and Purulia districts have been alerted. <br/><br/>Mr. Singh said that strong vigil will also be kept along train tracks and inter-State border areas to avert any untoward incident.