India, Sept. 23 -- The Gurugram Metropolitan Development Authority (GMDA) on Tuesday said work has begun on the fourth water treatment unit at the Basai water treatment plant, following the award of a Rs.149-crore tender for the project. The expansion will increase the plant's treatment capacity from 270 million litres per day (MLD) to 370 MLD, officials said.

The project includes a 100 MLD Filtration Unit No. 4, two sedimentation-cum-storage tanks of 300 million litres capacity each, a raw water pipeline and modern automation and monitoring systems.

A senior GMDA official said the contractor has started work and has 30 months to complete the project. "The tender has been awarded, and the contractor has already begun work, which will ha...