25. Depreciation.–

(1) Subject to the provisions of sub-rule (7), the allowance under section 33(3), in respect of depreciation of any block of assets specified in column (2) of the Table in Appendix I shall be calculated at the percentages specified in the column (3) of the said Table on the written down value of such block of assets as are used for the purposes of the business or profession of the assessee at any time during the tax year.

(2) The allowance under section 33(3) in respect of depreciation of any block of assets with respect to the persons mentioned in Column B of the following Table shall not exceed 40% of the written down value of such block of assets, if conditions mentioned in column C thereof are fulfilled:—

Table

(3) The allowance under section 33(2) in respect of depreciation of assets acquired on or after 1st April, 1977 specified in column (2) of the Table in Appendix II, shall be calculated at the percentage specified in the column (3) thereof on the actual cost to the assessee as are used for the purposes of the business of the assessee at any time during the tax year.

(4) The aggregate depreciation allowed under section 33(2), in respect of any asset for different tax years shall not exceed the actual cost of the said asset.

(5) The undertaking specified in section 33(2) may, at its option, be allowed depreciation under sub-rule (1) read with Appendix I instead of the depreciation specified in Appendix II, if option is exercised on or before the due date for furnishing the return of income under section 263(1)(c) for the tax year in which it begins to generate power.

(6) Any option under sub-rule (5) once exercised, shall be final and shall apply to all the subsequent tax years.

(7) Where any new machinery or plant is installed during the tax year commencing on or after the 1st April, 1987, for the purposes of business of manufacture or production of any article or thing and such article or thing—

(a) is manufactured or produced by using any technology (including any process) or other know- how developed in; or

(b) is an article or thing invented in, a laboratory owned or financed by the Government or a laboratory owned by a public sector company or a University or an institution recognised in this behalf by the Secretary, Department of Scientific and Industrial Research, Government of India, such plant or machinery shall be treated as a part of block of assets qualifying for depreciation at the rate of 40% of written down value, if the following conditions are fulfilled:—

(i) the right to use such technology (including any process) or other know- how or to manufacture or produce such article or thing has been acquired from the owner of such laboratory or any person deriving title from such owner;

(ii) the return furnished by the assessee for his income, or the income of any other person in respect of which he is assessable, for any tax year in which the said machinery or plant is acquired, shall be accompanied by a certificate from the Secretary, Department of Scientific and Industrial Research, Government of India, to the effect that such article or thing is manufactured or produced by using such technology (including any process) or other know-how developed in such laboratory or is an article or thing invented in such laboratory ; and

(iii) the machinery or plant is not used for the purpose of business of manufacture or production of any article or thing specified in the list in the Schedule XIII to the Act.

(8) For the purposes of sub-rule (7),–

(a) "laboratory financed by the Government" means a laboratory owned by any body including a society registered under the

Societies Registration Act, 1860 (2 of 1860) and financed wholly or mainly by the Government;

(b) "public sector company" means any corporation established by or under any Central Act, State Act or Provincial Act or a

Government company as defined in section 2(45) of the Companies Act, 2013 (18 of 2013); and

(c) "University" means a University established or incorporated by or under a Central, State or Provincial Act and includes an institution declared under section 3 of the University Grants Commission Act, 1956 (3 of 1956), to be a University for the purposes of that Act.