HDFC Bank on Wednesday said Keki Mistry has ceased to be a director on its board as he has completed his 8-year tenure. "Mistry has completed his 8-year tenure at the close of business hours on March 26,2011 and as a consequence has ceased to be a director of the bank," HDFC Bank informed the Bombay Stock Exchange. In terms of the provisions of section 10A(2A)(i) of Banking Regulation Act,1949,no director of a banking Company,other than its Chairman or whole-time Director,by whatever name called,shall hold office continuously for a period exceeding eight years,the bank said. Mistry is vice chairman and Chief Executive Officer of HDFC Ltd which is the promoter of HDFC Bank,with around 23.6 per cent stake.