Dear YS,
Relevant Para of the Hon'ble Supreme Court judgment is reproduced below:-
" The impugned order of the tribunal shall reflect that the Tribunal has kept in mind the Cost Accounting Standard-4 (CAS-4) as adopted by the department itself. On that basis it has come to the conclusion that the three aforesaid elements of cost which were sought to be included by the Department could not be the factors which would be taken into consideration for arriving at the cost of production. After going through the reasons given by the Tribunal in support of the aforesaid conclusion we find no error therein."
The words in bold and italics are important read with Tribunal order Para 2.1.1 .. (i) (a) The depreciation figure which includes depreciation on catalyst has to be reduced to avoid duplication of cost.
To clarify the point, you will appreciate that this part i.e part of the depreciation included in the catalyst was sought to be included by the Department which was also part of the total Depreciation and this part of the Depreciation and rightly so shall not be forming part of the cost of production.
You may also appreciate that as per CAS-4, Depreciation is part of the Manufacturing overheads having relation with the product manufacturing process and not other Depreciation i.e Administration and marketing related.
Therefore the Judgment read with Tribunal conclusions is the right position as per CAS-4 as well.
regards
Rakesh Singh