"Nitish Kumar is arrogant and proud. The people of Bihar will teach him a lesson in the forthcoming assembly poll," Das, who held a meeting with party workers in regard with the preparation for the World Yoga Day on June 21, told newsmen.
The state will witness a Jharkhand like result in the assembly poll, he claimed about Bihar and called upon Kumar to practice Yoga to control his arrogance.
Kumar had also advised Shah to "practice yoga silently at home everyday to stay fit. This will bring internal change in him too.