The Companies Act, 1956
563. Application of Act to unlimited companies re-registered under previous companies laws.
This Act shall apply to every unlimited company registered as a limited company in pursuance of any previous companies law, in the same manner as it applies to an unlimited company registered in pursuance of this Act as a limited company:
Provided that reference, express or implied, to the date of registration shall be construed as a reference to the date at which the company was registered as a limited company under the previous companies law concerned.