Residents of Kilnathur, which falls under Tiruvannamalai Corporation, blocked Vettavalam Main Road near the District Collectorate on Thursday to protest the seepage of sewage into their houses over the past few days.

Residents said that areas like Kilnathur village and Thavasi Kulam come under the 19th ward of the Corporation after the village was merged with the civic body this year.

“Sewage from the damaged drain entered our houses a few days ago. Women, children and senior citizens were badly affected due to the stagnation,” said K. Pavithra, a resident.

Residents said that the seepage of sewage water has also inundated a portion of the stretch, posing a public health risk to motorists and pedestrians. During night, two-wheelers skid on the stagnated stretch.

Residents said that the continuous stagnation of sewage on the stretch and houses has resulted in an increase in mosquito breeding in the area. With examinations underway, school students were unable to focus on their studies due to the mosquito menace.