"We are in regular touch with authorities in Bihar and have offered them all necessary assistance. We are trying to get more information," Minister of State for Home R P N Singh said in Delhi, adding the Centre was ready to provide additional forces to maintain law and order.
The Ministry has asked the state government to send a report about the nature of the bombs, suspected persons or organisations which could be behind it and steps taken to maintain law and order, official sources said.
The Centre also decided to send a team of explosive experts of the NIA to help the Bihar police in post-blast investigation, they said.
Station Manager of Patna Junction Raju Kumar said eleven trains booked by the BJP for the rally had arrived much before the blast. f