The provisions of Part II shall not be deemed to have affected any change in the territories to which the Andhra Pradesh Land Reforms (Ceiling on Agricultural Holdings) Act, 1973 (Andhra Pradesh Act No. 1 of 1973) and any other law in force immediately before the appointed day extends or applies, and territorial references in any such law to the State of Andhra Pradesh shall, until otherwise provided by a competent Legislature or other competent authority be construed as meaning the territories within the existing State of Andhra Pradesh before the appointed day