Kumar directed the officials to expedite the probe and bring to book the culprits at the earliest, the sources said.
Chief Secretary A K Sinha, Director General of Police Abhayanand and other senior administrative and police officials were present at the high-level meeting with the Chief Minister, the sources said.
The Chief Minister was briefed about the progress made in the probe and the overall law and order situation in the state, they said.
The Chief Minister later left for Rajgir to attend two-day 'Chintan 'Shivir' of the JD (U) during which he was expected to outline his party's political strategies, the sources said.
Six persons were killed in seven low intensity serial blasts of which six bombs went off in and around the venue of BJP Prime Ministerial nominee Narendra Modi's mega rally at Gandhi Maidan shortly before his address before a huge gathering on Sunday.
Currently 37 injured persons, many of them in critical condition, are being treated in Patna Medical College and Hospital.


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