Mumbai received 230 mm rainfall due to the cyclonic storm Tauktae, with a weather expert claiming it to be the highest 24-hour downpour in May in the recorded history. According to the India Meteorological Department s (IMD) Mumbai centre, the Santacruz observatory (representative of suburbs) recorded 230.3 mm rainfall in the 24-hour period ending at 8.30 am on Tuesday. Besides, the Colaba observatory (representative of south Mumbai) recorded 207.6 mm rain during the same period. As per the IMD s calculations, rainfall above 204.5 mm is considered as extremely heavy, Mumbai (Santacruz): 230 mm in last 24 hrs due to cyclone effect, this is the highest 24hrs rain in Mumbai in May in the recorded history. #CycloneTauktae, Vineet Kumar, a researcher on cyclones in the north Indian Ocean at the Indian Institute of Tropical Meteorology in Pune, tweeted on Tuesday.