The registration of a trademark confers upon the owner the exclusive right to the use the trademark in relation to the goods or services in respect of which the mark is registered and to indicate so by using the symbol (R), and seek the relief of infringement in appropriate courts in the country.
The exclusive right is however subject to any conditions entered on the register such as limitation of area of use etc.
Also, where two or more persons have registered identical or nearly similar marks due to special circumstances, such exclusive right does not operate against each other.