The new unit, which adds to the existing block housing 500 associates, will take the total capacity to 1,111 seats, Tech Mahindra, the country's fifth largest IT firm, said in a statement.
The new block was inaugurated by Chief Minister Naveen Patnaik today.
"I hope Tech Mahindra will continue to expand its growth and employment contribution from Bhubaneswar in future," Patnaik said.
Tech Mahindra established presence in Odisha in 1997 and has expanded its presence from 25 associates to about 600 workforce.