India, May 21 -- New Delhi

The Delhi Jal Board (DJB) has made poor progress in upgrading its sewage treatment plants (STPs), which has subsequently affected the clean-up of the Yamuna river, according to an April progress report of the DJB. Deadlines for seven facilities-at Okhla Phase-5, Mehrauli, Ghitorni, Vasant Kunj, Yamuna Vihar Phase-1, Keshopur Phase-1 and Yamuna Vihar Phase- 3-were pushed to December 2026, from missed deadlines in 2023 and 2024, it said.

To be sure, the Delhi Pollution Control Committee (DPCC), in its monthly status reports, has flagged that almost of half of the DJB's 37 STPs were not meeting pollution norms and needed correcting measures. However, the project to upgrade DJB STPs has seen multiple deadline revi...