THIRUVANANTHAPURAM: Water supply to many parts in Peroorkada and Sasthamangalam was disrupted for around 12 hours on Saturday following a burst in the 400-mm pipe of the Kerala Water Authority at Paippinmoodu. The pipe burst, which occurred around 6 a.m., was rectified by the KWA officials around 6 p.m. Water supply was restored by Saturday night, the officials said.