Chennai, Sept. 2 -- The India Meteorological Department (IMD) on Sunday said that Chennai received intense overnight rain, and there was a cloudburst over Manali in northern part of Tamil Nadu's capital city. Manali New, Manali Town and Wimco Nagar recorded 27 cm, 26 cm and 23 cm of rain respectively in 24 hours till 8.30 am on Sunday, the IMD said, adding, "There were six reports of rain spells of over 10 cm/hr that qualify the WMO (World Meteorological Organisation) and & IMD's definition of cloud burst ..." The Met department declares a cloudburst when an area receives 100 mm or more rainfall within an hour over a small area (20-30 sqkm). Some flights scheduled to arrive at the Chennai airport were diverted to Bengaluru but the passenger...