Explanation:

55. Issue and redemption of preference shares
(2) A company limited by shares may, if so authorised by its articles, issue  preference shares which are liable to be redeemed within a period not exceeding twenty years from the date of their issue subject to such conditions as may be prescribed:
Provided that a company may issue preference shares for a period exceeding  twenty years for infrastructure projects, subject to the redemption of such  percentage of shares as may be prescribed on an annual basis at the option of such preferential shareholders:
Provided further that—
(a) no such shares shall be redeemed except out of the profits of the company which would otherwise be available for dividend or out of the proceeds of a fresh issue of shares made for the purposes of such redemption;
(b) no such shares shall be redeemed unless they are fully paid;
(c) where such shares are proposed to be redeemed out of the profits of the
company, there shall, out of such profits, be transferred, a sum equal to the nominal amount of the shares to be redeemed, to a reserve, to be called the Capital Redemption Reserve Account, and the provisions of this Act relating to reduction of share capital of a company shall, except as provided in this section, apply as if the Capital Redemption
Reserve Account were paid-up share capital of the company; and
(d)           (i) in case of such class of companies, as may be prescribed and whose financial statement comply with the accounting standards prescribed for such class of companies under section 133, the premium, if any, payable on redemption shall be provided for out of the profits of the company, before the shares are redeemed:
Provided also that premium, if any, payable on redemption of any preference shares issued on or before the commencement of this Act by any such company shall be provided for out of the profits of the company or out of the company’s securities premium account, before such shares are redeemed.
(ii) in a case not falling under sub-clause (i) above, the premium, if any, payable on redemption shall be provided for out of the profits of the company or out of the company’s securities premium account, before such shares are redeemed.