Meanwhile, BMC also plans to go ahead with retrofitting projects in existing buildings. “We are asking old and existing societies to adopt rainwater harvesting. Though many people are yet to warm up to the idea, the cost factor is also a major deterrent. They don’t realise money is only spent in the initial stage. Despite our best efforts to spread awareness, people still have reservations,” said Marathe.

Environmentalists also opine that rainwater harvesting is a feasible option. “With rainwater harvesting underground water can be easily pumped. Also since our city gets good monsoon, this is a good way to utilise the rainwater. Moreover, it also helps in reducing flooding remarkably,” said Vishal Bhanushali, an engineer with Eureka Forbes Institute of environment.