New Delhi, Aug. 11 -- The National Green Tribunal (NGT) has given the Delhi Jal Board (DJB), Delhi Pollution Control Committee (DPCC) and Delhi Development Authority (DDA) four weeks to explain how a decentralised sewage treatment plant (DSTP) was allowed to be built at Smriti Van in Vasant Kunj, part of the South Central Ridge.

The directive follows a DPCC submission earlier this week that it had issued a show cause notice of Rs.10 lakh to DJB for failing to maintain the DSTP, leading to contamination of the Macchli Talab water body.

"We have also found that DSTP has been set up inside the park, i.e., Smriti Van. "The Applicant also submits that it has been set up inside the ridge area," a bench headed by NGT chairperson justice Prakas...