Mulugu district of Telangana received record-breaking rainfall of 649.88mm making it the first time that the state has witnessed such an extreme value this season. On Wednesday, in its 'impact-based heavy rainfall warning for districts of Telangana, the Met Centre issued a red warning that heavy to very heavy rain with extremely heavy showers is very likely to occur at isolated places in Khammam, Nalgonda and other districts from 4 pm of July 26 to 8:30 am on July 27.