According to the Meteorological Department, when suddenly there is 100 mm rainfall in an area of 20 to 30 square kilometers in an hour or less. Or if it rains more than that then it is called cloud burst.

According to the Meteorological Department, when suddenly there is 100 mm rainfall in an area of 20 to 30 square kilometers in an hour or less. Or if it rains more than that then it is called cloud burst.