4.6 mm of rainfall has deluged Sylhet in the last 24 hoursThree hours of torrential rains have inundated parts of Sylhet city, causing residents to wade through knee-deep waters. From 6am on Wednesday to 6am on Thursday, only 4.6 mm of rain had fallen in the district, Sajib said. Earlier, on Jun 2, several hours of rain waterlogged all of the city. Later, on Jun 10, rainwater accumulated in parts of the city, making life difficult for city dwellers. We demand that the Surma River, city walls, and canals be excavated in a planned way.”Nur Azizur Rahman, chief engineer of Sylhet City Corporation, said: "The current situation is due to the heavy downpour.