Power Outage Alert: Scheduled Maintenance to Disrupt Supply Across Key Districts in Tamil Nadu Tomorrow

Residents in Chennai and Coimbatore should prepare for a five-hour power suspension on June 25, 2026, as TANGEDCO undertakes critical infrastructure upgrades.

If you are planning your workday in parts of Chennai or Coimbatore tomorrow, June 25, 2026, you might want to check your power backup. The Tamil Nadu Electricity Board (TANGEDCO) has confirmed that electricity supply will remain suspended in several neighborhoods between 9:00 AM and 2:00 PM to facilitate routine maintenance work on local grids.

Affected Areas in Chennai

The maintenance drive covers a broad swathe of the city. In the Thiruneermalai region, residents living near the temple streets—including the East and South Mada streets, Kulakarai Street, and the VGN Mahalakshmi Nagar area—will face outages. Similarly, business and residential pockets in Thirumudivakkam, including the Women’s Industrial Estate, Sri Krishna Nagar, and the Palm Riviera apartments, are slated for a shutdown.

Down in the heart of the city, the commercial hub around Anna Salai is also impacted. The outage will affect major office blocks and iconic landmarks, including the Raheja Towers, Express Avenue Estate, the Ethiraj College vicinity, and the Connemara Hotel. For those working near the G.P. Road and Club House Road stretches, the five-hour window will see a complete suspension of grid power.

Coimbatore’s Maintenance Schedule

It isn't just the capital feeling the strain; the industrial and rural belts of Coimbatore are also on the list. The Irumbarai substation will be offline, cutting off supply to Irumbarai, Pethikuttai, and surrounding villages like Koundampalayam and Iluppanatham. Additionally, households and businesses in Peedampalli, Kalangal, Pattanam, and the Pattanam Pudur areas should expect the same five-hour disruption.

Why it matters: The bigger picture

While these scheduled outages are often met with frustration, they are a primary necessity for an aging urban grid struggling to keep pace with rapid infrastructure expansion. This original report highlights a recurring trend: as Tamil Nadu continues to see aggressive industrial growth and housing development, the existing electrical infrastructure requires frequent, intensive maintenance to prevent larger, unplanned failures.

For the average citizen, this is a reminder of the fragility of our utility networks. Frequent maintenance cycles are a double-edged sword—they signal that the grid is being cared for, yet they expose the growing pains of a state that is rapidly urbanizing. Whether you are a business owner on Anna Salai or a resident in a Coimbatore suburb, checking these official notifications has become an essential part of planning the week.