Tax exemption notification requires exclusive application of income and specified investment, accounting, filing, and dissolution conditions. Notification designates Ramakrishna Mission, West Bengal as eligible for tax exemption under clause (23C)(iv) for specified assessment years, on conditions: income must be applied or accumulated solely for the institution's objects; funds may not be invested except in forms permitted by section 11(5) (excluding certain voluntary contributions held as jewellery or furniture); business income is excluded unless incidental and separately accounted; the institution must file returns regularly; and on dissolution surplus assets must pass to a like charitable organisation.