S. 80P : Co-operative societies –Interest income from fixed deposits with scheduled banks, personal loans to employees and house building loans not attributable to business of providing credit facilities to members-Deduction rightly denied-Commission, miscellaneous and sundry receipts not attributable to business of providing credit facilities-Deduction rightly denied. Income-Method of accounting-Overdue interest on non-performing assets-Income recognition-Matter remanded to exclude interest only if supported by statutory guidelines or accounting standards-Assessment-Income from other sources-Expenses against interest income-No further expenses allowable beyond those already claimed in computation of income-Disallowance confirmed Principles of natural justice-Alleged lack of opportunity before Commissioner (Appeals)-Appellate order passed after considering submissions-No violation was found.[S.4, 80P(2)(a)(1), 80P(2(d) 143(3), 250]