Permission had been given to the Tamil Nadu Trade Promotion Organisation (TNTPO) for utilising additional 9.13 acre of land for the expansion, he told the state assembly.
TNTPO has prepared a detailed project report for the expansion of Trade Centre and the expansion model was also approved by the board.
"This expansion project will be developed at an estimated project cost of Rs 289 crore. This will develop additional exhibition space of 15,700 square metres in CTC", he said.
The trade centre was set up by the India Trade Promotion Organisation and Tamil Nadu Industrial Development Corporation as a joint venture in 2001.
Spread over 25.48 acres, it presently has three large exhibition halls and a convention centre.