Tamil Nadu Electricity Board [TNEB] — low voltage, need an additional transformer

Summer started, we are facing big trouble because of low voltage in nights... We cannot run ac... Half speed fans...in our area we need additional transformer.. As the current capacity is not withstanding the load... Even we could witness street lights (Led) will dim a second because of load. If any of them turned ac on... So pls help in providing additional transformer for our area...

Abinaya avenue, karthick nagar extn-2, guduvanchery - 603202