Is there a specific time frame during which an Ordinance must be laid before the Legislature for it to remain effective?
Yes, there is a specific time frame during which an Ordinance must be laid before the Legislature for it to remain effective. According to the context provided, "An Ordinance promulgated under this article in pursuance of instructions from the President shall be deemed to be an Act of the Legislature of the Union territory which has been duly enacted after complying with the provisions in that behalf contained in any such law as is referred to in clause (1) of article 239A, but every such Ordinance—

(a) shall be laid before the Legislature of the Union territory and shall cease to operate at the expiration of six weeks from the reassembly of the Legislature or if, before the expiration of that period, a resolution disapproving it is passed by the Legislature, upon the passing of the resolution."