If the rating is only for power outage management, I'll rate 4 to 5 stars as most of the occasions after a deficiency or breakdown due to a faulty cable or overloaded transformer, power is restored pretty early.
Is this review restricted only to Chennai City? What about other parts of Tamil Nadu? Does this mean only the residents of Chennai alone be taken care off for the whole of Tamil Nadu?
------- Edited on 2017-06-21 -------
Self residing in Kanchipuram near New Railway station where hectic fluctuations in the supply of power. If little drop rains, they stop supply for more than an hour. When there is blowing of wind it is good to take care of supply lines. For small intermittant rains they stop supply of power. With regard to restoratiion of power supply when informed about faults. they attend it promptly. But poor supply of power with severe low voltage in the areas covered with Kullappan street, Mariamman koil street and adjoining areas the supply is erratic. This is due to lot of usage of Air conditioner as well as the areas are nearby to Railway station