1.The Principal Secretary, Highways and Minor Ports Department, Fort St. George, Secretariat, Chennai-600 009. 2.The Secretary, Public Works Department, Fort St. George, Secretariat, Chennai-600 009. 3.The District Collector, Thiruvallur District. 4.The District Collector, Chennai District, Singaravelar Maaligai, No.62, Rajaji Salai, Chennai-600 001. 5.The Chairman, Tamil Nadu Electricity Board, No.144, N.P.K.R.R.Maaligai, Anna Salai, Chennai-600 002. 6.The Chief Engineer, Public Works Department, Water Resources Organisation, Chennai Region, Chepauk, Chennai-600 005. 7.The Assistant Divisional Engineer, Tamil Nadu Electricity Board, Tower Line Circuit, Korattur, Chennai. 8.The Executive Engineer, Tamil Nadu Electricity Board, Tower Line Circuit, Korattur, Chennai. 9.The Chairman, Department of Environment Assessment Authority – I, Gennis Road, Ground Floor, Panakal Maaligai, Saidapet, Chennai-600 015.