While a debate rages on fixing responsibility for water retention in Mumbai during monsoon, a CAG report tabled in the Legislative Assembly on Tuesday has listed lack of adequate drain infrastructure and a delay in updating stormwater disposal system as some deficiencies in the existing system for management of flood risk.

The Comptroller and Auditor General of India (CAG) report on general and social sector has also observed that drains in Mumbai are adequate only to handle 25 mm rainfall per hour and that there are numerous obstructions in the larger drains due to siphons and other utility services. It also stated that floodgates have been provided in only three of the 45 outfalls in the drains.