The chief minister was unharmed.
An unfazed Kumar, who went on to address a public meeting in Dumraon block, said, "Some people feel disturbed over my commitment to progress of the state. They try to mislead and provoke others but people should not get perturbed over such minor happenings".
He said the cavalcade moved ahead for the village where the chief minister launched 168 schemes worth Rs 272 crore before addressing public meeting.
It was not immediately known who were the persons who indulged in stone-pelting and what was their grouse.
The chief minister said, "My purpose is not to run government from the state capital but to assess ground realities and progress of development schemes so that basic amenities like roads, clean water and power reach every village, in fact, every locality, in the state. If anybody is trying to mislead people about my mission, the reality will speak for itself and the mission would never get derailed".
He also spoke at length about his mission of ban on sale and consumption of alcohol and the drive against dowry and child marriage as also measures being taken by the government for skill development of the youths so that they got better job opportunities.
The CM told security personnel deployed at the venue of the public meeting "do not worry about any protests. If some people want to raise slogans and show black flags."
Kumar has been criss-crossing the state as part of "Vikas Samiksha Yatra" to take stock of implementation of developmental programmes at the grassroot.