Tax exemption recognition for charitable society requires exclusive application of income, restricted investments, business separation and dissolution rules. Notification recognizes Annapurna Mahila Mandal under clause (23C)(iv) of section 10 for specified assessment years, subject to conditions: apply or accumulate income wholly and exclusively for its objects; restrict investments to forms permitted by Section 11(5) (except voluntary contributions held as jewellery or furniture); treat business income as taxable unless incidental with separate books; file income-tax returns regularly; and on dissolution transfer surplus and assets to a charitable organisation with similar objectives.