In Orissa, Maoists blew up railway tracks between Bisra and Bhalulata railway station in Sundergarh district early Wednesday morning. Eight bogies of a goods train has been derailed and train services between Howrah-Mumbai have also been disrupted following the explosion.<br/><br/>However, there has been no report of any casualty following the blasts. Maoists had blew up railway track near Bhalulata station on last Sunday too. Repairing work of the railway tracks is going on to restore train services.