The Tamil Nadu government will seek assistance from IIT Madras to study recurring flooding in Chennai’s Velachery, after heavy overnight rain inundated parts of AGS Colony, Ram Nagar and adjoining low-lying neighbourhoods during the northeast monsoon.
Information technology minister and Velachery MLA R. Kumar said the proposed study would examine the causes of repeated waterlogging and help formulate a long-term solution. He made the statement during an inspection of the affected areas, where residents said emergency pumping could not replace a scientifically validated flood mitigation plan.
Kumar described Velachery, including Ram Nagar and AGS Colony, as a water basin where buildings were constructed about 40 years ago. He said water was currently being pumped out within three to four hours because of the efforts taken by the Greater Chennai Corporation.
The GCC has installed additional high-capacity pumps in the affected streets, while the minister directed officials to deploy more tractor-mounted motor pumps and maintain round-the-clock monitoring. The measures are intended to remove accumulated rainwater and manage the immediate impact of the flooding.
South Chennai MP Thamizhachi Thangapandian and Chennai Mayor R. Priya also inspected the flooded junction of AGS Colony Third Main Road and Sixth Cross Street. Officials from the GCC, Chennai Metropolitan Water Supply and Sewerage Board, revenue department and Tamil Nadu Power Distribution Corporation were present during the inspection.
Residents, however, said the repeated inundation required a coordinated assessment of the area’s drainage, topography and water-disposal arrangements. They argued that pumping water out after every major rainfall addressed the immediate symptoms but did not establish why water continued to accumulate in the neighbourhood.
“We have requested a comprehensive study of AGS Colony and adjoining flood-prone neighbourhoods by experts from IIT-M and Anna University, in coordination with the government departments, to identify the root causes of recurring flooding and prepare a permanent, integrated flood mitigation plan,” said Geetha Ganesh, secretary of the AGS Colony Residents’ Welfare Association.
The demand places the focus on how several public systems operate together in a flood-prone urban area. Drainage, stormwater movement, sewage infrastructure, electricity safety, road levels and the availability of alternative routes all affect how residents experience a rainfall event. The presence of officials from multiple departments during the inspection reflects the range of agencies involved in the response.
Residents have also revived a decades-old demand for direct road connectivity from their neighbourhood to Velachery Bypass Road through vacant land belonging to the Hindu Religious and Charitable Endowments department. According to the residents’ association, the absence of an alternative exit towards the MRTS Inner Ring Road or Velachery Bypass Road creates difficulties during severe flooding, particularly in emergencies.
The association said Kumar took up the connectivity request with the HR&CE minister on Sunday after inspecting the flooded areas. Residents welcomed the intervention but said the immediate priority remained addressing recurrent inundation while pursuing longer-term infrastructure improvements.
The next steps are the proposed coordination with IIT Madras and Anna University, continued pumping and monitoring by civic officials, and further consideration of the alternative road connection. The report does not specify a timeline for the expert study or the implementation of any permanent flood mitigation plan.
