S. 80P : Co-operative societies-Delay in filing of return-Failure to file the return on due date-Not entitle to deduction-Adjustment made while processing return of income is valid-Not entitled to deduction-Liable to pay fee of Rs 5000. [S. 80 (P) (2) (A) (i), 80AC, 139 (1), 139(4), 143 (1) (a) ,234F]