Exemption for armed forces welfare funds: income received for regimental or non-public funds is tax-exempt for members' and dependants' welfare. Clause (23AA) has been inserted in section 10 to exempt from income-tax any income received by any person on behalf of any Regimental Fund or Non-Public Fund established by the armed forces of the Union for the welfare of past and present members of such forces or their dependants, and the clause is deemed always to have been inserted.