(1) If a Development Plan is not prepared, published and submitted to the Government by a Planning and Development Authority within the period specified in section 29 or section 31, as the case may be, or within the period extended under the proviso to the said sections 68[or if the Government is of the opinion that such a plan is needed to be prepared by the 69 [Chief Town Planner (Planning)], the Government may authorise the 70 [Chief Town Planner (Planning)] to prepare such plan and direct the cost thereof to be recovered from the Planning and Development Authority concerned out of its funds.
(2) The 71 [Chief Town Planner (Planning)] shall, if so authorised under sub-section (1), prepare a Development Plan and submit it to the Board and the Board shall follow in respect of the plan so prepared such procedure and exercise such powers as a Planning and Development Authority would follow or exercise in respect of a Development Plan prepared by it.