New Delhi, Nov. 20 -- The Delhi Pollution Control Committee (DPCC), withdrawing notice for a Rs.10 lakh penalty, imposed Rs.1.5 crore as environmental cost on the Delhi Jal Board (DJB) for violations at its decentralised sewage treatment plant (DSTP) in Vasant Kunj's Smriti Van. The DPCC found that the treatment plant was operating without a mandatory consent to operate (CTO), and was poorly maintained, with a drain parallel to the plant releasing untreated wastewater entering the pond. The National Green Tribunal is hearing a plea filed in 2022 by resident Amit Aggarwal, alleging large-scale concretisation in Smriti Van. The tribunal has also sought details on condition of Smriti Van and Macchli Ka Talab, which lies within the 34.5-acre area of the ridge. NGT has asked the DPCC to re-examine justification for the penalty issued on August 4. htc...