Principal Secretary to Government,
Chennai - 600 009.
Tamil Nadu Minerals Limited, Chepauk,Chennai-600 005
2nd & 3rd Floor, SIDCO Corporate Office Building, Thiru-vi-ka-Industrial Estate, Guindy, Chennai-600 032.
Finance Department, Fort St. George, Chennai-600 009.
Department of Geology and Mining, Guindy, Chennai 600 032.
Department of Mining Engg., Anna University, Chennai-600 025.
Industries Department, Fort St.George, Chennai-600 009.