2. The interest payable from time to time [by the Central Government] to any person on any of the Government promissory notes known as Amanati Notes, whereof a list and description is set forth in schedule I, shall be deemed to be a pension due to such person within the meaning of the Pensions Act, 1871, and that Act shall apply to any such interest as if it were a pension of the classes referred to in sections 4 and 11 ;
Provided that in applying section 10 of the said Act to such interest, that section shall be read as if it were as follows : The [Central Government] may
(a) order any interest amounting to more than one rupees but not more than five rupees a month payable on an Amanati Note to any person to be commuted with the consent of such person for a lump sum on such terms as may seem fit, except where the circumstances of the said person are such that the stoppage of the pension would result in his being left destitute, and
(b) order any interest amounting to one rupee a month or less payable on an Amanati Note to say person to be commuted on such terms as may seem fit with or without the consent of such person.