Registration of a business name is obligatory if any individual or partnership (whether composed of individuals or bodies corporate or any combination of both) or any body corporate carries on business under a name other than their own true names. Its purpose is to make public the identities of those individual(s), partnerships or corporate bodies being the legal entity behind the business name.
Your proposed name must be different from that of a business that already exists. Also, names containing words that could potentially cause offence are not allowed.
Note: registration of a business name does not give protection against duplication of the name.