Section 133 of Income Tax Act, 2025 : Deduction in respect of donations to certain funds, charitable institutions, etc.
(1) In computing the total income of an assessee, there shall be deducted, as per and subject to the provisions of this section,—(a) the whole of the aggregate of the sum or the sums paid by the assessee, in the tax year as donations to––(i) the National Defence Fund set up by the Central Government; […]