Residents of Gangavalli village had not been getting water supply for the past two months and were angry with panchayat president Periyadurai of PMK as he was not coming to office and solving their grievances, police said.
When Periyadurai came to the panchayat office today, a day after the voting for Lok Sabha elections in Tamil Nadu, agitated people gheraoed him and locked him up in his room.
A case was registered against around 100 people under IPC section 147 (rioting) and 188 (disobedience), police said adding the agitators were detained briefly.