If you see water across a road and cannot see the kerb, do not drive into it. Most rain damage to vehicles in Chennai happens in a few predictable places: subways, underpasses and stretches like GST Road, Maduravoyal and the Porur toll plaza, which were waterlogged on 16 October, India TV reported.
The Greater Chennai Corporation has installed pumps in 19 of its subways and five highways department subways, Deccan Chronicle reported. Pumps help, but they can be overwhelmed in the kind of downpour north Chennai saw on 17 October. Here is how to ride and drive safely, and what to do with your insurer if the worst happens.
On a two-wheeler
- Slow down early. Tyres lose grip on the oily film that rises in the first minutes of rain.
- Avoid the road edge. That is where open drains, broken catch pit covers and Metro and utility pits hide under water.
- Keep the throttle steady in shallow water and do not stop midway. If water reaches the silencer, turn back.
- Wear a full raincoat with reflective strips and keep your phone in a sealed pouch.
- Avoid riding under trees in strong wind. Fallen branches are a leading cause of injury in storms here.
In a car
- Judge the depth. If water is above the middle of the wheel, do not attempt it. Watch a bus or lorry go through first, not another car.
- Drive slowly in first or second gear to avoid a bow wave entering the engine air intake.
- If the engine stalls in water, do not restart it. Restarting can draw water into the cylinders and cause far worse damage. Switch off, put on hazard lights and call for a tow.
- Test brakes gently after leaving water.
- Do not park in basements or low streets when IMD issues an orange or red alert for Chennai.
Subways and underpasses
Chennai’s subways are the most dangerous spots in heavy rain. On 16 October, the Corporation Commissioner inspected the Aranganathan Subway in Saidapet, its sumps and pump rooms, DT Next reported. Police close subways when water rises, but closure can lag behind a sudden downpour.
- Never enter a subway with standing water, even if others are doing it.
- Check traffic police updates before setting out. During the 2024 monsoon, the Chennai traffic police listed control rooms on 044-2345 2362 (south and east) and 044-2345 2330 (north and west), according to DT Next.
- Report waterlogged subways to the Corporation on 1913.
Flood damage and motor insurance
Whether you can claim depends on your policy. A third-party-only policy covers damage you cause to others, not damage to your own vehicle. A comprehensive or standalone own-damage policy may cover flood damage; read the list of insured perils in your policy wording, and check whether engine damage caused by water entering the engine is excluded unless you bought an engine protection add-on.
The steps that protect a claim:
- Inform your insurer immediately through its helpline or app, and note the claim number.
- Do not try to start the vehicle. Ask the insurer to arrange a tow to an authorised workshop.
- Take photos and video of the water level and the vehicle before it is moved.
- Keep documents ready: policy copy, registration certificate, driving licence and the repair estimate.
- Wait for the surveyor before authorising repairs.
If a car is written off, the most you can receive is the insured declared value. The General Insurance Council describes IDV as the maximum sum payable on total loss of a vehicle.
If your claim is delayed or rejected
- Complain to your insurer first in writing.
- IRDAI’s Bima Bharosa: if you are unhappy with the response, file on the Bima Bharosa portal, call 155255 or 1800 4254 732, or email complaints@irdai.gov.in, as listed on its call centre page.
- Insurance Ombudsman, Chennai: Fatima Akhtar Court, 4th Floor, 453 Anna Salai, Teynampet. It covers Tamil Nadu and parts of Puducherry. You must first approach the insurer, and you can file within a year of its reply. Claims up to ₹50 lakh are heard free of charge, according to the Council for Insurance Ombudsmen.
This is general information. For a specific dispute, read your policy wording and consult your insurer or an adviser.
Quick answers
Does car insurance cover flood damage?
A comprehensive or own-damage policy may; a third-party-only policy does not. Check the perils and exclusions in your policy.
Should I start a car that stalled in water?
No. Get it towed and inform your insurer first.
Where do I complain about an insurance claim?
Your insurer first, then IRDAI’s Bima Bharosa on 155255, then the Insurance Ombudsman in Chennai.
How many Chennai subways have pumps?
The Corporation says pumps are installed in 19 of its subways and five highways department subways.
Information checked against official sources on 18 October 2026. Fees, dates and rules can change; confirm on the linked official pages before acting.
Sources
- Bima Bharosa call centre (IRDAI)
- Bima Bharosa grievance portal (IRDAI)
- Council for Insurance Ombudsmen
- Offices of Insurance Ombudsman (Council for Insurance Ombudsmen)
- General Insurance Council
- Chennai Corporation’s multi-pronged approach to monsoon preparedness (Deccan Chronicle)
- Chennai records 3.42 cm average rainfall (DT Next)
- Tamil Nadu rain alert, waterlogging on GST Road, Porur (India TV)
- Emergency helpline numbers issued amid heavy rains (DT Next, 2024)
