Brand Name Registration though not compulsory but helps in protection of Goodwill/Reputation of a business against any kind of duplicates or spurious products. It is very common for many companies supplying products mostly in rural areas to start producing and supplying spurious products, which may have different name but the same logo and color scheme of a famous products like butter, ghee, bread, biscuits, etc, in a bid to make quick profits.
The Brand Name registration, therefore, becomes necessary to protect against such duplicacy by registration of logo, color scheme, patterns, etc under various Intellectual Property Rights Law, or in some cases formation of LLP / company under respective law also gives recognition to a business name and helps in protection of the Brand Name of the business!