Registered address basically is the company secretary's office. The secretary must be present at the registered office of the company himself or by his agent on the days and at the hours during which the registered office is to be accessible to the public. (Under Companies Acts 1965, Section 139(3).
The office of the secretary is legally recognised and is a statutory requirement under Companies Acts 1965, Section 4(1). Under section 139(1B) the registered office must not be left vacant for more than one month at any one time.