(3)Where any charitable institution provides in any year of assessment institutionalized care for the sick or the needy and where the Commissioner-General is satisfied that the cost of provision of such care is borne by such charitable institution, the Commissioner-General may, subject to specified conditions, grant a tax credit against the tax payable on the charitable institution’s taxable income for the year of assessment, provided it appears to the Commissioner-General that such reduction or remission is just and equitable in all the circumstances of the case.