Sources said that the bomb was attached with a battery. JPN/Agencies
A woman named Shanti Devi was injured when she picked up the crude bomb mistakenly from the ground as an interesting object and it exploded in her hand. Her husband and a neighbour's boy standing nearby were also wounded. All the three injured were admitted to hospital.
Seven constituencies are going to polls on Tuesday in the fourth of the six-phase Lok Sabha elections in Bihar to decide the electoral fate of 94 candidates.
The seats are Madhubani, Jhanjharpur, Madhepura, Darbhanga, Samastipur (SC, Reserved), Begusarai and Khagaria - all in the Kosi river belt.
Stringent security measures have been put in place to ensure free and fair polling
Sources said that the bomb was attached with a battery.