the assessing authority and the first appellate authority took one view that it is a revenue receipt whereas tribunal on facts found that it is a capital receipt not assessable as income, but it should be reduced to arrive at the actual cost of plant and machinery for the purpose of depreciation. The Supreme Court, in the decision reported in T.S.Balaram, Income Tax Officer v. Volkart Brothers (82 ITR 50) held that a mistake apparent on the record must be an obvious and patent mistake and not something which can be established by long drawn process of reasoning on points on which there may be conceivably two opinions. The nature of subsidy in this case that is as to whether it is revenue receipt or capital receipt is not self-evident to treat it as not capable of more than one meaning. On the other hand the subsidy scheme was understood by three authorities viz., the assessing officer, the first appellate authority and the tribunal in two different ways. Therefore, intrinsically two opinions are possible about the type and nature of the subsidy and so much so it is a debatable issue on which two views are possible and therefore the subsidy cannot be brought to tax through rectification proceedings. The tribunal has not given any specific finding in this regard even though the assessee had specifically taken a ground in these lines. However, since we find