CSE started its work on water issues way back in the 80s, when it was becoming apparent that the water management paradigm based on exploitation of surface and groundwater resources even as it neglected capturing rain to recharge or for direct use would lead the country to a huge water crisis. CSE first focussed on pushing for policy reforms in the water sector to mainstream harvesting rainwater in both urban and rural areas.

To support this policy advocacy, CSE undertook intensive and extensive awareness campaigns, capacity building workshops and informational materials. The outcome of this work was that there were supportive policy initiatives in urban and rural areas to promote water harvesting and all this was met with public support.