It is evident from the above that the issue before the Hon’ble Apex Court was not whether the presumpt ion theory would apply or not where there are mixed funds and the assessee had demonstrated avai lability of sufficient own funds for making the investments . No discussion on this aspect has also been done by the Hon’ble Apex Court and merely not ing that the assessee had ut i l ized mixed funds, the Hon’ble Apex Court held that the principle of apport ionment would apply. Wi thout any discussion or del iberat ion on the presumpt ion theory, the proposi t ion laid down in the case of Avon Cycles Ltd. (supra) by the Hon’ble Apex Court has to be restricted to the extent of the issue before the Hon’ble Apex Court and facts before i t and not beyond that . And on that basis the decision of the Hon’ble Supreme Court in the case of Avon Cycles Ltd. (supra) can be read only to the extent of upholding the principle of apport ionment of expenses incurred in the context of the l imi ted fact of mixed funds avai lable wi th assessee and no further. The proposi t ion laid down cannot be stretched even logical ly to address the fact si tuat ion where suf f icient own interest free funds are avai lable wi th assessee, which fact was not there before the Hon’ble Apex court in the case of Avon Cycles (supra) , and to negate the presumpt ion that the own funds were used for making the investment , which was nei ther the quest ion raised before the apex court and therefore not addressed by i t also.