Renovation of the Thuraiymangalam Big Tank near Perambalur, with an estimated cost of ₹49 lakh, is being carried out by the Water Resources Department. The tank, which is a major source of irrigation in the district, is expected to be completed before the monsoon season. District Collector K. Karpagam has issued instructions to remove encroachments and sewage discharges to ensure the smooth functioning of the tank.