Section 10(4)(i) in The Employees' State Insurance (General) Regulations, 1950
(i)Save as expressly provided in this regulation, the term of office of the members of the Regional Board referred to in clause (e) of and the proviso to sub-regulation (1) shall be 8 [three years] commencing from the date on which their nomination is notified, provided that the members of the Regional Board, shall, notwithstanding the expiry of the said period, continue to hold office until the nomination of their successors is notified.(ii) Save as expressly provided in this regulation, the members of the Regional Board referred to in clause (c) of sub-regulation (1) shall hold office during the pleasure of the State Government nominating them.