India, Aug. 11 -- A key central government panel has granted approval for a Rs.2,574 crore project - assisted by the Asian Development Bank - for revamp of water supply network in the catchment area of Wazirabad water treatment plant (WTP), Delhi government officials said on Monday.

Delhi water minister Parvesh Verma said Delhi's long-awaited Wazirabad water supply improvement project has taken a step forward, with the screening committee of the Department of Economic Affairs (DEA) granting in-principle approval to the project.

The project includes modernising the treatment process, transmission, distribution infrastructure, replacing ageing pipelines, reducing water losses and improving household connections, officials said.

"Our resp...