"After the union ministry's alert, Bihar Police and intelligence agencies have been taking it seriously and have decided to take no chance," a police official said.
According to police officials here, IM along with another terror organisation, in its secret meeting held in Nepal, decided to target some top BJP leaders, including Shahnawaz Hussain, who hails from Bihar.
Last week, the intelligence wing of Bihar Police alerted about the threat of Maoist attack on senior BJP leaders.
Patna Zonal Inspector General of Police Sushil Man Singh Khopde said that superintendents of police of all Maoist affected districts have been asked to provide special security to leaders on the hit list of Maoists.
In the last two months, Maoists have killed nearly two dozen people, including 10 policemen in the state.