"Drivers and conductors of private buses had blocked the Kalyanpur-Bithur Marg today. The actual reason for the protest is being determined," DIG Amitabh Yash said.
The protestors alleged that a kin of SP MLA from Bithur constituency, Munendra Shukla, had beaten up a conductor two days ago.
They also alleged that such conduct and also extortion of money was a routine affair with Shukla's relatives.
However, Shukla denied the charges as false and claimed political rivalry to be behind the agitation.