(1)The Central Government shall constitute an Authority for giving advance rulings, to be known as "Authority for Advance Rulings":Provided that the Authority shall cease to act as an Authority for Advance Rulings for the purposes of Chapter V of the Customs Act, 1962 (52 of 1962) on and from the date of appointment of the Customs Authority for Advance Rulings under section 28EA of that Act:[Provided further that the Authority so constituted shall cease to operate on and from such date as the Central Government may, by notification in the Official Gazette, appoint.]