City

Chennai monsoon checklist for homes and apartments

Clear your gate drain, find your relief centre and plan where cars will go. A room-by-room monsoon checklist for Chennai homes and apartment associations.

19 October 2026

Chennai FalconMr. Parthasarathy aka Chennai Falcon is passionate about…

The single most useful thing a Chennai household can do this week is clear the drain at its own gate and find its nearest Corporation relief centre. The Greater Chennai Corporation has listed 215 relief centres and says it is preparing for up to 20 to 30 cm of rain in a day, according to Commissioner G.S. Sameeran.

This checklist is split into what individual homes should do and what apartment associations should organise. Most of it costs little and takes an afternoon.

For every home

Documents and money

Put Aadhaar, ration card, property papers, insurance policies and bank documents in a waterproof pouch. Keep photos of each on your phone and in cloud storage.
Keep some cash. ATMs and card machines go down when power is cut.

Emergency bag

Torch, spare batteries, charged power banks, a basic first-aid kit and a week of prescription medicines.
Drinking water for two days, biscuits, dry snacks and milk powder if you have small children.
A printed card with key numbers: 1913 (Corporation), 1070 and 1077 (disaster helplines), 1916 (Metro Water), 94987 94987 (Minnagam) and 108 (ambulance).

Power safety

Know where your main switch is and switch off if water enters the house.
Ask an electrician about a residual current device. TNPDCL’s website carries a safety notice urging consumers to install RCDs.
Keep away from fallen wires and waterlogged junction boxes. Report them to Minnagam.
Expect power to be cut in flooded areas as a precaution, as officials warned on 18 October.

Water and health

Store clean drinking water before heavy spells. Boil tap water if it looks or smells different after rain, and report it to Metro Water.
Empty flower-pot trays, coconut shells, old tyres and overhead tank lids. The state has directed domestic breeding checkers to survey homes for Aedes larvae, PTI reported, because dengue rises after rain.
See a doctor early for fever with body ache. Government hospitals and primary health centres offer dengue testing.

For apartment associations

Clear terrace outlets and rainwater pipes. Blocked terrace drains cause seepage and short circuits in top floors.
Check the sump and basement. Seal sump lids so floodwater cannot contaminate stored water. Service the dewatering pump and keep fuel for the generator.
Plan parking. Agree in advance where cars will go if basement or stilt parking floods. Move them when IMD issues an orange alert for Chennai, not when water is already rising.
Lift safety. Ground the lift on an upper floor and switch it off if the pit is at risk of flooding.
Trim trees. Cut weak branches over parked cars and power lines. For trees on the road, call 1913.
Make a residents list. Note elderly residents, people with disabilities and those on medical equipment, and assign a neighbour to each.
Set up one information channel. One WhatsApp group with only official updates helps more than ten groups full of forwards.

Know when to leave

The Corporation relief centre list names the school or hall, its capacity and the officials in charge for each ward. On 18 October, Public Works Minister Aadhav Arjuna urged residents of roughly 60-year-old Tamil Nadu Housing Board buildings in north Chennai to move to relief centres during the heavy rain, DT Next reported. If your building is old, cracked or on the ground floor of a low street, plan your exit early.

Install the state’s TN-Alert app for location-based flood warnings. It is designed to sound even when your phone is on silent.

What the Corporation has ready

It helps to know what support exists so you can plan around it. In early October, the Corporation said it had prepared 111 community kitchens alongside the 215 relief centres, and that more than 5,200 volunteers had registered through the Namma Chennai app, DT Next reported. It also has 36 boats of its own, with the fisheries department holding 256 more, Deccan Chronicle reported in late September. If your association wants to help neighbours, registering volunteers through the app is the official route.

After the rain

Photograph damage before cleaning up, for insurance claims.
Do not switch on wet appliances until an electrician checks them.
Disinfect floors and sumps that floodwater touched.
Report silt or debris left in drains so they are clear before the next spell.

Quick answers

When should we move our cars?

When IMD issues an orange or red alert for Chennai district, before the rain starts.

Where is my nearest relief centre?

Check the Corporation’s zone-wise list of 215 centres on its website.

How do we avoid dengue after rain?

Empty any container that holds water each week and see a doctor early for fever.

Who clears a fallen tree on our road?

The Corporation, on 1913 or the Namma Chennai app.

For health symptoms, consult a doctor; this checklist is general guidance.

Information checked against official sources on 18 October 2026. Fees, dates and rules can change; confirm on the linked official pages before acting.