"Kumar has shown immaturity in discussing internal political issues and vilifying the performance of his predecessor in Bihar," he told reporters.
During a recent interaction with the visiting Pakistani parliamentary delegation, the Chief Minister had referred to prevalence of lawlessness and 'kidnapping' industry in the state during the earlier regime in an obvious reference to the RJD-led rule and told the visitors as to how his government had worked hard to establish a rule of law in the state and ushered in an atmosphere of peace and tranquility.
"It goes against political ethics when you run down your adversaries before foreign visitors," Paswan said referring to the Chief Minister's criticism of the performance of the then RJD-led rule before the Pakistani parliamentary delegates.
The LJP supremo said that he too had visited a number of countries, including Pakistan, but did not raise domestic political issues as "we are duty-bound to put up united face and represent the country during interaction with a foreign country and visitors from there."