Can we use the word "company" in a proprietorship firm/trade name (like ‘Ram Manufacturing Company’)?

A proprietorship firm cannot be a company. Both types of organization possess different characteristics. Company means any organization which has two or more persons and which has separate legal entity, perpetual existence. Sole proprietorship firm does not have any of them characteristics as described nor there is any process followed for its incorporation. Hence lawfully one cannot use word Company in the name proprietorship firm.