Two persons have been arrested in connection with the late last night incident, police said.
Six persons, including two policemen, were injured in stone-pelting during a Ganesh idol procession in the city last midnight, police said, adding that the reason for the provocation could not be ascertained.
"The situation is normal in the area and steps have been taken to ensure that such incidents do not occur again," city police commissioner Satish Sharma told PTI.
Police vigil has been stepped up in the city in view of the ten-day Ganesh festival commencing from tomorrow.