The loss of a speculation business of any assessment year is allowed to be set off only against the profits and gains of another speculation business in the same assessment year. If a speculation loss could not be set off from the income of another speculation business in the same assessment year, it is allowed to be carried forward for 8 assessment years immediately succeeding the assessment year for which the loss was first computed. Also, it can only be set off against the income of only a speculation business. It may be observed that it is not necessary that the same speculation business must continue in the assessment year in which the loss is set off. However, filing of return before the due date is necessary for carry forward of such a loss.