Delhi's installed sewage treatment capacity stood at 814 MGD in March 2026, and the Chief Minister's target is 1,500 MGD by 2028. Closing that gap means adding 686 MGD, an increase of 84%, in about two years.
Where the growth came from
The Master Plan for Delhi 2041 baseline, using 2018-19 data, counted 20 plants with 617 MGD of capacity, of which 458.75 MGD was actually treated, against 720 MGD of wastewater generated. By March 2026 the Board reported 814 MGD of installed capacity across 37 plants, with 735 MGD treated. On October 22, 2026, the 564 MLD Okhla plant and rehabilitated plants at Rithala and Kondli were formally inaugurated.
What is meant to fill the gap
Delhi Jal Board's October 2026 package includes upgrading eight plants from 78.2 MGD to 140.8 MGD for Rs 1,041 crore, and 29 decentralized plants with 170 MGD of capacity for outer Delhi. Thirteen of those 29 contracts had been awarded by July 2026, and in October the government described work on all 29 as awarded. The Board also approved 13 new plants under the National Mission for Clean Ganga at Rs 7,373 crore in September 2026, against an earlier estimate of Rs 5,340 crore for 331.5 MGD.
Capacity is not coverage
About 45% of Delhi was outside the sewerage system in the 2018-19 baseline, and 1,799 unauthorized colonies are due to receive sewer connections by December 2028. Plants at Kondli (36 MGD) and Jagriti Vihar (24 MGD), targeted for December 2028, had no tenders in October 2026.
How the Board's supply, networks, finances and charges compare, including debt of more than Rs 70,000 crore and about 30 lakh registered connections, is set out in the profile. The full report, Utility Intelligence Profile: Delhi Jal Board, is available for USD 99. For a free overview, read the Delhi Jal Board Utility Snapshot.