The issue is, whether the income by way of right back of provisions of sundry credit balances and prior period expenses can be considered as income from core activities of a tonnage tax company. In our opinion, write back of these items is to be considered as income from core activity. In a going concern, such write backs and making of supplementary provisions takes place. The Assessing Officer as well as the Commissioner (Appeals) have treated the very same income which is taxable under section 41(1) differently. The first being expenditure claimed in pre-tonnage tax scheme assessment years and the second being expenditure claimed in post tonnage tax scheme assessment years. Such a segregation is not permissible under the Act. Both the incomes are incomes from core activity and just because tax rates different, they cannot be treated as non-business income. The Assessing Officer as well as the Commissioner (Appeals) seem to have been influenced by the fact that the assessee has an income of Rs. 800 crores in its Profit & Loss account and whereas he has offered only Rs. 18 crores to tax under the tonnage tax scheme. The decision whether a particular income has to be brought to tax or not, cannot be based on such a view of the matter. The legislature in its wisdom provided the manner of computation of income under the tonnage tax scheme. In section 115VA, it is clearly provided that sections 28 to 43C would not over ride the computation of profits and gains under section 115VA. As section 41(1) falls within sections 28 to 43C, no separate addition under that section can be made. As section 41(1) seeks to bring to tax certain specified items of receipts under the head “profits and gains of business” the scheme should not be invoked while computing profits and gains of business under Chapter-XII-G. Hence, we are of the opinion that the argument of the assessee should succeed.