(h)     such allowance in respect of amounts included in the taxpayer’s gross income under paragraph (g) or paragraph (h) of the definition of “gross income” in section 1 as the Commissioner may deem reasonable having regard to any special circumstances of the case and, in the case of an amount so included under the said paragraph (h), to the original period for which the right of use or occupation was granted or, in the case of any amount so included under the said paragraph (h) in consequence of an agreement concluded on or after 1 July 1983, to the number of years taken into account in the determination of the relevant allowance granted to any other person under the provisions of paragraph (g) of this section: Provided that where there has on or after the twenty–ninth day of March, 1972, accrued to the taxpayer the right to have improvements effected on land or to buildings by any other person and an amount is required to be included in the taxpayer’s gross income under the said paragraph (h) with respect to such improvements, no allowance shall be made to the taxpayer under this paragraph in respect of such amount, if –

 

(i)      the taxpayer or such other person is a company and such other person or the taxpayer, as the case may be, is interested in more than 50 per cent of any class of shares issued by such company, whether directly as a holder of shares in that company or indirectly as a holder of shares in any other company; or

 

(ii)     both the taxpayer and such other person are companies and any third person is interested in more than 50 per cent of any class of shares issued by one of those companies and in more than 50 per cent of any class of shares issued by the other company, whether directly as a holder of shares in the company by which the shares in question were issued or indirectly as a holder of shares in any other company;