Tamil Nadu Generation and Distribution Corporation Limited (TANGEDCO)(R-1)
Tamil Nadu Electricity Regulatory Commission (R-2)
The Chief Financial Controller (Revenue) TANGEDCO (R-3)
The Chief Engineer (NCES) TANGEDCO (R-4)
The Superintending Engineer Cuddalore EDC
TANGEDCO (R-5)
The Superintending Engineer Pudukkottai EDC
TANGEDCO (R-6)