According to the police, Maoists triggered the blast to blow up about 18-metre rail track. Even though noone was hurt in the blast, the Train services on Howrah-Mumbai route has been affected.
Railways officials said that many long-distance trains, including Howrah-Bilaspur-New Delhi Rajdhani Express, were detained at several stations due to the damage.
The Maoists called for the bandh protesting the arrest of the convener of Maoist-backed People's Committee against Police Atrocities (PCPA) Chhatradhar Mahato.
Mahato was arrested in West Bengal's West Midnapore district on Sep 26.