March 15 (Reuters) - TCS Group Holding Plc TCSq.L :
* BOOKRUNNER SAYS ACCELERATED BOOKBUILT OFFERING OF SECONDARY SHARES OF UP TO ABOUT 3.25 MILLION ORDINARY SHARES
* BOOKRUNNER SAYS TOTAL OFFERING SIZE OF UP TO ABOUT $80M
* BOOKRUNNER SAYS BOOKS OPEN IMMEDIATELY; CLOSING EXPECTED ON MARCH 15 Further company coverage: TCSq.L
(Reuters.Briefs@thomsonreuters.com)