Section 36(1)(xii) notification: deductibility for Oil Industry Development Board allowed subject to specified conditions and accounts. Section 36(1)(xii) notification designates the Oil Industry Development Board under the Oil Industry (Development) Act as a notified institution for deductible expenditures, subject to conditions: expenditures must be for authorised objects, not capital in nature, not eligible under any other Income-tax provision, and must be maintained in a separate account; the notification is prospective from 1 April and does not affect ongoing proceedings for prior assessment years.