The Perumbakkam marshland in Chennai, a crucial flood barrier, is facing continued debris dumping despite the National Green Tribunal (NGT) taking suo motu cognizance of the issue in July 2023. Residents report that debris has been dumped near Global Hospitals since Friday. On Saturday, machinery was observed leveling the debris to create an access road for a nearby gated community construction.
Officials emphasize that no debris is allowed within the Ramsar site. Deepak Srivastava, member-secretary of the Tamil Nadu State Wetland Authority, stated that they would investigate the situation and that the NGT is already hearing the matter. The State Wetland Authority and Chennai Metropolitan Development Authority are jointly exploring granting building approvals, even outside the Ramsar site, on patta lands.
The Perumbakkam marshland plays a vital role in draining water to the Kovalam estuary via the Pallikaranai marsh, Okkiyum Maduvu channel, and Buckingham Canal. During Cyclone Michaung, the area experienced neck-deep water for four days, forcing many residents to evacuate.
Environmental activist G Sudararjan of Poovulagin Nanbaragal expressed concern about the shrinking of wetlands, highlighting the potential for flooding in areas like Velachery and OMR. He emphasized that no obstructions should be permitted within wetlands.
The forest department is currently constructing a 5km-compound wall around the Ramsar site. VA Saravanan, Chennai district forest officer, stated that 2.5km of walls along the Pallikaranai and Perumbakkam marshlands are underway and will be completed by next year.
