In determining for the purposes of this Act the value of a person's estate immediately before his death there shall be left out of account any pension payable under the regulations or rules relating to any fund vested in Commissioners under section 273 of the Government of India Act 1935 or to any fund administered under a scheme made under section 2 of the Overseas Pensions Act 1973 which is certified by the Secretary of State for the purpose of this section to correspond to an Order in Council under subsection (1) of the said section 273.
For the purposes of this Act—
as is certified by the Secretary of State to be attributable to service under the Government of an overseas territory shall be treated as if it had been paid by the Government of that territory.
Subsection (1) above shall be construed as if contained in section 273 of the Government of India Act 1935; and for the purposes of subsection (2) above—
If, by reason of Her Majesty's Government in the United Kingdom having assumed responsibility for a pension, allowance or gratuity within the meaning of section 1 of the Overseas Pensions Act 1973, payments in respect of it are made under that section, this section shall apply in relation to the pension, allowance or gratuity, exclusive of so much (if any) of it as is paid by virtue of the application to it of any provisions of the Pensions (Increase) Act 1971 or any enactment repealed by that Act, as if it continued to be paid by the Government or other body or fund which had responsibility for it before that responsibility was assumed by Her Majesty's Government in the United Kingdom.