The National Water Supply and Drainage Board have said that water supply to Kalutara and several areas will be disrupted for 12 1/2 hours from 8.00 am tomorrow due to emergency maintain operations. Accordingly, the water supply will be suspended in Wadduwa, Waskaduwa, Pothupitiya, Kaluthara-North, Kaluthara - South, Katukurunda, Nagoda, Payagala, Pilaminwatta, Bombuwala, Maggona, Beruwala, Kaluwamodara, Moragalla, Aluthgama, DargaTown and Bentota.