He has called a meeting of RJD legislators on Wednesday to discuss the issue.
According to a staff member at 10 Circular Road, at present the sprawling bungalow is without a single security personnel. "It is for the first time that there is virtually no security jawan at the residence of Lalu-Rabri."
Senior RJD leader Shivanand Tiwari told the media: "Lalu's family has been targeted for opposing divisive politics. Nitish Kumar is indulging in revenge politics, which is not right."
He said Lalu Prasad's family is already on the hit list of several gangs for opposing reservation.
"In view of the threat perception to them, downgrading of security cover was not proper. Tejashwi Yadav has been visiting different places across Bihar to address public meetings. If anything happened to him, nobody but Nitish Kumar would be responsible."
Earlier, Tejashwi Yadav said the Chief Minister sent him a notice to vacate the government residence he is presently living in.