Really? Apart from dismantling the settlements along the Musi which are encroachments upon the oroginal storm sewer plans, what else can be done to prevent this from being a yearly event?
Raju, before making suggestions, you should take a closer look at the history of Hyderabad. Read upon the post 1904 flood storm sewer construction plans. It'll give you the precise reason for the tragedy.
Hyderabad was prepared for worse rains than these.