Section 21(3)(b) in The Oil And Natural Gas Commission Act, 1959
(b)no re-appropriation which has the effect of augmenting the provision under any head of expenditure as approved by the Central Government by more than twenty per cent [*] [The words "or seven and a half lakhs of rupees" whichever is less, Omitted by Act 38 of 1962, Section 5.] shall be made.