Human trafficking and migrant smuggling are serious crimes and human rights abuses, affecting men, women and children regardless. This study will help on better understanding the relevant connections between migration and vulnerability to trafficking, forced labour, child labour, and modern slavery. In last five years, maritime migration in Asia has become increasingly touchy, as refugees and irregular migrants navigating the region by the Bay of Bengal which enter an epoch of crisis as a wave of migrants and refugees attempted to cross sea to reach Southeast Asia. Numerous Bangladeshi workers risk their lives on overcrowded fishing boats traveling across the Bay of Bengal. Now people are abducted or manipulated and taken to larger vessels anchored in international waters outside of Bangladesh's maritime frontier. This in-depth study will focus the areas where our prevention efforts should center for the protection of the victims and vulnerable migrants.