Order of the National Green Tribunal in the matter of Tribunal on its own motion-SUO MOTU Initiated proceedings based on the news item published in Dinamalar Tamil Newspaper, Chennai Edition dated 06.08.2020 under the caption “ Will Perumbakkam Lake become tourist spot?” Vs Public Works Department & Others dated 15/02/2021.

The matter related to dumping of garbage and sewage pollution affecting Perumbakkam lake.

Updated report of the Oversight Committee dated 12/02/2021 in the matter of Original Application No. 673/2018 (News item published in The Hindu authored by Jacob Koshy titled "More river stretches are now critically polluted: CPCB".

Order of the National Green Tribunal in the matter of Subhash Gupta & Others Vs Union of India & Others dated 10/02/2021. An application was filed in the NGT to enforce the order of July 23, 2018 for proper maintenance of storm water drains in Gurgaon. The report of GMDA filed February 8, 2020 (the latest) has stated that 47.7 MLD was yet to be diverted/treated.

Report of the Joint Committee constituted by the National Green Tribunal (SZ) vide order of November 23, 2020 in Original Application No. 246 of 2020.

Order of the National Green Tribunal in the matter of Residents of Village Nodai Wagar, P.S. Naraura, Bulandshahar Vs State of Uttar Pradesh dated 05/02/2021 regarding STP unit at Narora, district Bulandshahr, Uttar Pradesh discharging untreated waste water in river Ganga.

Order of the Allahabad High Court in the matter of Public Interest Litigation (PIL) No. 4003 of 2006 on Ganga pollution.

An affidavit filed by the District Magistrate, Prayagraj stated that as per current status report, all STPs are functional and all parameters are within range.

The affidavit filed by the Uttar Pradesh Control Board stated that the water of river Ganga was not fit for drinking purpose but fit for bathing purpose. A test analysis report of January 27, 2021 regarding the quality of water was also annexed with the affidavit.

Joint Committee report in respect of Original Application No. 48 of 2020 taken up Suo Motu based on the news item published in Dinamalar newspaper of February 26, 2020 on sewage in Buckingham Canal, Chennai. The NGT in its order of February 28, 2020 directed the constitution of a Joint Committee to inspect the area in question and submit a factual and action taken report.

Inspection report of Joint Committee in Original Application 54/2020 in the matter of Ambattur lake pollution in Ambattur taluk of Thiruvallur district of Tamil Nadu.

The National Green Tribunal, Southern Zone, Chennai had directed a Joint Committee to look into the matter and submit a report on the removal of encroachment and steps taken to prevent discharge of untreated sewage into the lake and save the lake from pollution.

Order of the National Green Tribunal in the matter of Pushpendra Kumar Vs Nagarpanchayat, Kadaura & Others dated 13/01/2021.

The matter related to restoration of a water body called the main pond (Sadar Bazar) of Kadaura town, district Jalaun, Uttar Pradesh. It is stated that such restoration is necessary for access to drinking water. Direction is also sought to stop continuous burning of solid plastic waste, garbage cans, electronics waste, glass inside the residential area of town Kadaura that emits poisonous gases causing severe air pollution.

Counter affidavit filed by the Department of Environment, Tamil Nadu dated 12/01/2021.

The matter dealt with allegations of raw sewage encroachments in Korattur, Ambathur, Madhavaram, Peerknkaranai and Adambakkam lakes.