(a)in the case of any essential commodity being a food-stuff in respect whereof a notification issued under sub-section (3A) of section 3 of the Essential Commodities Act, 1955 (10 of 1955) is in force in the locality in which the notified station is situated, the price payable shall be calculated in accordance with the provisions of clauses (iii) and (iv) of that sub-section;