S. 36(1)(viii): Eligible business-Special reserve-Financial corporation engaged in long-term housing finance-Deduction applicable only to profits from long-term finance for construction or purchase of house for residential purpose-Interest income from loans of term under five years not to be excluded, being from core business-Loans for non-residential purpose not integral part of residential loans-Not eligible for deduction-Income must emanate from eligible undertaking with direct nexus-Surplus funds from housing finance business parked in approved Government securities yielding interest-Direct nexus with core business-Income “derived from” business-Eligible for deduction-Expenditure relating to income not includible in total income-Own funds in excess of investment for earning dividend-Interest cost not to be adjusted against dividend income-Administrative expenditure to be reallocated based on ratio of exempt-income-yielding investments to total average assets-Disallowance of expenditure relating to exempt income-Exemption on interest from tax-free bonds-Own funds in excess of investment-No disallowance warranted.[S. 10(33), 14A, R.8D]