Tamil Nadu Electricity Board [TNEB] — no power for more 18 hrs

This is a complaint about no power in or fluuctuation of power for more thannot18 hrs ashthalakshminagar 13th street, this is absolutely the worst cities i have lived in, where there is no in charge of any concerns, this is actually dangerous and because of power fluctuating the electronic devices are not working and am sure nobody from the govt will be responsible for this. You better fix this issue, this is not the first time this has happened for the past 6 months it has happened several times