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Chennai is set to witness scheduled power outages on Sunday, June 21, 2026, as the Tamil Nadu Electricity Board undertakes maintenance and infrastructure upgrade works across multiple zones. The shutdowns are part of routine efforts to strengthen the city's power distribution network and ensure long-term supply reliability.
Most areas will face power cuts between 9:00 AM and 3:00 PM, although supply may be restored earlier depending on the completion of works.
Power Cut Timings Across Chennai
- General Timing: 9:00 AM to 3:00 PM
- Note: Supply may resume earlier if maintenance work is completed ahead of schedule
Full List of Affected Areas
Kanchipuram and Surrounding Zones
Power supply will be interrupted in several suburban and peripheral areas, including:
- Kanchipuram town and nearby residential pockets
- Enathur
- Orikkai
- Nathapettai
- Sevilimedu
- Konerikuppam
- Ayyangarkulam
- Parts of Walajabad region
These areas fall under key distribution lines undergoing maintenance and feeder-level repairs.
Tambaram and Suburban Belts
Residents in parts of Tambaram and surrounding developing localities may experience outages:
- Tambaram East and West
- Selaiyur
- Camp Road
- Madambakkam
- Rajakilpakkam
- Sembakkam
- Chitlapakkam
These regions are witnessing ongoing infrastructure strengthening due to rapid urban expansion.
Chengalpattu and Peripheral Areas
Scheduled maintenance will impact supply in:
- Chengalpattu town
- Paranur
- Singaperumal Koil
- Maraimalai Nagar
- Potheri
- Kattankulathur
These areas are part of key industrial and residential corridors connected to Chennai.
Industrial and Semi-Urban Clusters
Power shutdowns will also affect select industrial and mixed-use zones:
- SIPCOT industrial belts
- Small-scale industrial layouts
- Warehousing and logistics hubs in suburban stretches
Why These Power Cuts Are Happening
The outages are being carried out to support:
- Preventive maintenance of transformers and feeders
- Replacement of ageing electrical components
- Load balancing across high-demand zones
- Infrastructure upgrades in rapidly growing suburbs
Officials state that such scheduled shutdowns help prevent sudden breakdowns and ensure smoother long-term electricity supply.
What Residents Should Do
With up to six hours of disruption expected, residents are advised to plan ahead:
- Charge phones, laptops, and power banks in advance
- Store sufficient drinking water
- Keep emergency lights or inverters ready
- Avoid using elevators during outage hours
- Businesses should plan operations to reduce downtime
Power Restoration
Electricity supply is expected to resume by 3:00 PM, though it may be restored earlier in some areas depending on work completion.
Bottom Line
While the outage may temporarily disrupt routine activities, it is part of essential maintenance work aimed at improving Chennai's power infrastructure. Residents across affected regions are advised to stay prepared and monitor local updates for any changes in schedule.