Tax exemption notification: approval conditioned on exclusive charitable application, restricted investments, separate books for incidental business and dissolution rules. The trust is notified as eligible under the cited provision subject to conditions: income must be applied or accumulated exclusively for charitable objects; funds may be invested only in forms permitted by section 11(5) except certain voluntary contributions held in kind; business income is excluded unless incidental and maintained in separate books; regular filing of income-tax returns is required; and on dissolution surplus and assets must be transferred to a like-minded charitable organisation.