On and from the date of establishment of the Food Authority, every employee holding office under the Central Government Agencies administering food laws immediately before that date shall hold his office in the Food Authority by the same tenure and upon the same terms and conditions of service including remuneration, leave, provident fund, retirement and other terminal benefits as he would have held such office if the Food Authority had not been established and shall continue to do so as an employee of the Food Authority or until the expiry of the period of six months from that date if such employee opts not to be the employee of the Food Authority.