(a)  a company owning an industrial undertaking or a ship or a hotel with another company; or

(b)  a banking company referred to in clause (c) of section 5 of the Banking Regulation Act, 1949 (10 of 1949) with a specified bank; or

(c)  one or more public sector company or companies engaged in the business of operation of aircraft with one or more public sector company or companies engaged in similar business,

then, notwithstanding anything contained in any other provision of this Act, the accumulated loss and the unabsorbed depreciation of the amalgamating company shall be deemed to be the loss or, as the case may be, allowance for unabsorbed depreciation of the amalgamated company for the previous year in which the amalgamation was effected, and other provisions of this Act relating to set off and carry forward of loss and allowance for depreciation shall apply accordingly.

(2) Notwithstanding anything contained in sub-section (1), the accumulated loss shall not be set off or carried forward and the unabsorbed depreciation shall not be allowed in the assessment of the amalgamated company unless—

(a)  the amalgamating company—

 (i)  has been engaged in the business, in which the accumulated loss occurred or depreciation remains unabsorbed, for three or more years;

(ii)  has held continuously as on the date of the amalgamation at least three-fourths of the book value of fixed assets held by it two years prior to the date of amalgamation;

(b)  the amalgamated company—

 (i)  holds continuously for a minimum period of five years from the date of amalgamation at least three-fourths of the book value of fixed assets of the amalgamating company acquired in a scheme of amalgamation;

 (ii)  continues the business of the amalgamating company for a minimum period of five years from the date of amalgamation;

(iii) fulfils such other conditions as may be prescribed to ensure the revival of the business of the amalgamating company or to ensure that the amalgamation is for genuine business purpose.

(3) In a case where any of the conditions laid down in sub-section (2) are not complied with, the set off of loss or allowance of depreciation made in any previous year in the hands of the amalgamated company shall be deemed to be the income of the amalgamated company chargeable to tax for the year in which such conditions are not complied with.

(4) Notwithstanding anything contained in any other provisions of this Act, in the case of a demerger, the accumulated loss and the allowance for unabsorbed depreciation of the demerged company shall—

(a)  where such loss or unabsorbed depreciation is directly relatable to the undertakings transferred to the resulting company, be allowed to be carried forward and set off in the hands of the resulting company;

(b)  where such loss or unabsorbed depreciation is not directly relatable to the undertakings transferred to the resulting company, be apportioned between the demerged company and the resulting company in the same proportion in which the assets of the undertakings have been retained by the demerged company and transferred to the resulting company, and be allowed to be carried forward and set off in the hands of the demerged company or the resulting company, as the case may be.

(5) The Central Government may, for the purposes of this Act, by notification in the Official Gazette, specify such conditions as it considers necessary to ensure that the demerger is for genuine business purposes.

(6) Where there has been reorganisation of business, whereby, a firm is succeeded by a company fulfilling the conditions laid down in clause (xiii) of section 47 or a proprietary concern is succeeded by a company fulfilling the conditions laid down in clause (xiv) of section 47, then, notwithstanding anything contained in any other provision of this Act, the accumulated loss and the unabsorbed depreciation of the predecessor firm or the proprietary concern, as the case may be, shall be deemed to be the loss or allowance for depreciation of the successor company for the purpose of previous year in which business reorganisation was effected and other provisions of this Act relating to set off and carry forward of loss and allowance for depreciation shall apply accordingly :

Provided that if any of the conditions laid down in the proviso to clause (xiii) or the proviso to clause (xiv) to section 47 are not complied with, the set off of loss or allowance of depreciation made in any previous year in the hands of the successor company, shall be deemed to be the income of the company chargeable to tax in the year in which such conditions are not complied with.

(6A) Where there has been reorganisation of business whereby a private company or unlisted public company is succeeded by a limited liability partnership fulfilling the conditions laid down in the proviso to clause (xiiib) of section 47, then, notwithstanding anything contained in any other provision of this Act, the accumulated loss and the unabsorbed depreciation of the predecessor company, shall be deemed to be the loss or allowance for depreciation of the successor limited liability partnership for the purpose of the previous year in which business reorganisation was effected and other provisions of this Act relating to set off and carry forward of loss and allowance for depreciation shall apply accordingly :

Provided that if any of the conditions laid down in the proviso to clause (xiiib) of section 47 are not complied with, the set off of loss or allowance of depreciation made in any previous year in the hands of the successor limited liability partnership, shall be deemed to be the income of the limited liability partnership chargeable to tax in the year in which such conditions are not complied with.

(7) For the purposes of this section,—

(a) "accumulated loss" means so much of the loss of the predecessor firm or the proprietary concern or the private company or unlisted public company before conversion into limited liability partnership or the amalgamating company or the demerged company, as the case may be, under the head "Profits and gains of business or profession" (not being a loss sustained in a speculation business) which such predecessor firm or the proprietary concern or the company or amalgamating company or demerged company, would have been entitled to carry forward and set off under the provisions of section 72 if the reorganisation of business or conversion or amalgamation or demerger had not taken place;

(aa)  "industrial undertaking" means any undertaking which is engaged in—

  (i)  the manufacture or processing of goods; or

 (ii)  the manufacture of computer software; or

(iii)  the business of generation or distribution of electricity or any other form of power; or

(iiia) the business of providing telecommunication services, whether basic or cellular, including radio paging, domestic satellite service, network of trunking, broadband network and internet services; or

(iv)  mining; or

 (v)  the construction of ships, aircrafts or rail systems;

(b)  "unabsorbed depreciation" means so much of the allowance for depreciation of the predecessor firm or the proprietary concern or the private company or unlisted public company before conversion into limited liability partnership or the amalgamating company or the demerged company, as the case may be, which remains to be allowed and which would have been allowed to the predecessor firm or the proprietary concern or the company or amalgamating company or demerged company, as the case may be, under the provisions of this Act, if the reorganisation of business or conversion or amalgamation or demerger had not taken place;

(c)  "specified bank" means the State Bank of India constituted under the State Bank of India Act, 1955 (23 of 1955) or a subsidiary bank as defined in the State Bank of India (Subsidiary Banks) Act, 1959 (38 of 1959) or a corresponding new bank constituted under section 3 of the Banking Companies (Acquisition and Transfer of Undertakings) Act, 1970 (5 of 1970) or under section 3 of the Banking Companies (Acquisition and Transfer of Undertakings) Act, 1980 (40 of 1980).