Tension was already brewing over the issue in the area with locals objecting to it on grounds of foul smell which would emanate from the dumping ground.
When the municipal authrities went to collect garbage yesterday, the locals prevented them from reaching the spot.
On informing the police, a police team arrived which angered the locals.
The locals started pelting stones in which one policeman was injured, two vehicles of the police and municipal authorities were damaged, superintendent of police A Rabindranathan said.
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