(a)Immediately after the date of expiry all such stocks after being segregated and stamped "not for sale" or "not for use" or "not for manufacture", as the case may be, shall be kept by the licensee in a separate place specially demarcated for the purpose with a declaration "date-expired insecticides" to be exhibited on the conspicuous part of the place. [A record of all such stocks shall be maintained in Form XI.]]