A subsidiary company is owned by another company (holding company) either partially or entirely. The holding company controls the composition of the board of directors of the subsidiary company or more than 50% of its voting powers. Where a single holding company holds 100% voting powers, the subsidiary is known as the Wholly Owned Subsidiary (WOS) of the holding company.
n unlisted company is a company that is not listed on any recognised stock exchange, and its shares are not freely tradable on the stock exchanges. These companies fulfil their capital requirements by obtaining funds from friends, family members, relatives, financial institutions, or private placement.
Now to your question, the shifting of the companies to various places can be decided as per the memorandum of association or the AOA of the holding company or by any other bylaws in this regard.
You can consult your auditor on all such further issues