The evolution of trade unions was a result of a significant shift in the employer-employee dynamic that was motivated by industrialization. Trade unions emerged as a response to exploitation by using collective bargaining to secure fair treatment. Trade union law regulates union formation and activities that protect workers and foster industrial harmony. This law interacts with tort, contract, and constitutional law to ensure accountability and equitable treatment. Through legislative frameworks and judicial decisions, it is meant to balance the interests of workers, employers, and society, promoting socio-economic welfare. In this article, we’ll explore the connection between trade union law with tort, contract and constitutional law.