It is not heavy rains but normal rains of the season.The mess is due to negligency of local Administration who spent their years enjoying the fruits of independence without doing anything for the city.It boasts much but actually it has nothing except history of past legacy left over by the britishers.See the other cities in the country,how they are managing their port cities like Chennai,Visakhaptnam and Calcutta.They have frequent cyclones every year but they have no problems like Mumbai.Mumbai is for rich and effullent and they never cared for basic civic amenities.The roads are in bad shape with slums and filthy everywhere with concrete gungles .Only some supernatural forces can bring it into proper shape.