(1)All lands and buildings which immediately before the commencement of Part III of this Act were vested in His Majesty for the purposes of the government of India shall as from that date-(a)in the case of lands and buildings which are situate in a Province, vest in His Majesty for the purposes of the government of that Province unless they were then used, otherwise than under a tenancy agreement between the Governor-General in Council and the Government of that Province, for purposes which thereafter will be purposes of the Federal Government or of His Majesty's Representative for the exercise of the functions of the Crown in its relations with Indian States, or unless they are lands and buildings formerly used for such purposes as aforesaid, or intended or formerly intended to be so used, and are certified by the Governor-General in Council or, as the case may be, His Majesty's Representative, to have been retained for future use for such purposes, or to have been retained temporarily for the purpose of more advantageous disposal by sale or otherwise ;(b)in the case of lands and buildings which are situate in a Province but do not by virtue of the preceding paragraph vest in His Majesty for the purposes of the government of that Province, and in the case of lands and buildings which are situate in India elsewhere than in a Province, vest in His Majesty for the purposes of the government of the Federation or for the purposes of the exercise of the functions of the Crown in its relations with Indian States, according to the purpose for which they were used immediately before the commencement of Part III of this Act ;and(c)in the case of lands and buildings which are situate elsewhere than in India (except lands and buildings situate in Burma or Aden),vest in His Majesty for the purposes of the government of the Federation or,. if they were immediately before the commencement of Part III of this Act used for purposes of the department of the Secretary of State in Council, for the purposes of His Majesty's Government in the United Kingdom.