The water supply to several areas in Colombo would be interrupted for 21 hours starting from 8.00 a.m tomorrow till 5.00 a.m on Thursday due to urgent maintenance work at Godagama, the National Water Supply and Drainage Board (NWSDB) said. Accordingly, the water supply to Maharagama, Boralasgamuwa, Kottawa, Pannipitiya, Ruckmalgama, Pelanwaththa, Maththegoda, Homagama, Meepe and Padukka, would be restricted for 21 hou