Movement of local trains in the section was consequently paralysed after 8 AM and it could be only resumed after 12 noon, according to eastern railway sources.
The blockade was called to protest against irregular running of local trains in the section which has caused inconvenience to office-goers, students and businessmen in the area, a protester alleged.
The policemen, who reached the spot to bring the situation under control in Nungi were beaten up by the protesters, a police official said, adding that they also vandalised a police vehicle.