Just as a land owner and other physical property owner sell his property to others, a trademark owner also has the right to sell and transfer his trademark to others. A possible way of transferring and selling the trademark is trademark assignment.
Trademark Assignment And Transfer Procedure in India defines transferring the rights, interests, and benefits of the owner and changing the trademark ownership to another person. The party transferring is call the assignor, and the party receiving is call the assignee. Register and unregister trademarks both can assign.