The accused say a close aide of former RJD MP Shahabuddin gave them a supari to kill Ranjan.
Hours before Narendra Modi's scheduled rally in Bahraich, the district administration gave a conditional permission to the Bharatiya Janata Party to hold the meet on Friday.
The government is mulling moving the Supreme Court for cancellation of his bail even as opposition National Democratic Alliance on Wednesday demanded his arrest in the journalist Rajdeo Ranjan murder case.
The order to kill journalist Rajdeo Ranjan, the police say, was issued from Siwan jail.
Rampant crime challenges the chief minister's promise to maintain law and order. But some say there are other forces at play.
The Central Bureau of Investigation has taken over investigations in the murder of journalist Rajdeo Ranjan as it registered a case on Thursday against unknown assailants.
Twenty people were killed on Saturday in rain-related incidents in Madhya Pradesh and Rajasthan even as rivers continued to be in spate in Bihar.
Bihar Chief Minister Jitan Ram Manjhi appears to be on the way out in the wake of his defiance as the Janata Dal-United is all set to replace him with his mentor Nitish Kumar at a meeting of the legislature party on Saturday.
Yakub Memon, who was convicted for helping finance the serial blasts in Mumbai in 1993 in which 257 people were killed, was hanged at the Nagpur Central Jail on Thursday morning shortly before 7am.
Incidents of arson, firing and vandalism were reported from Madhya Pradesh, Rajasthan, Uttar Pradesh, Bihar and Punjab as protesters agitated against the dilution of the SC/ST Act.
Barring Maharashtra, the poll percentage in rest of the states was in excess of 60 per cent while in Puducherry it was 80.47 per cent.