Tamil Nadu Electricity Board [TNEB] — Continues Low voltage issues

Address:

Ponni nagar, karambakkam, Porur

Ponni nagar, karambakkam, Porur facing low voltage issues every night without fail. This issue is there for many years and no steps taken to solve this permanently. Voltage meter goes less than 170 and keep fluctuating always. Because of this ac, laptop, mobile etc are getting damaged. Till 2 am midnight everyday this issue this happening, kindly check solve this issue permanently.