Thousands of Muslim migrant workers from Burma risk being fined and deported from Thailand after June 30, under a new law that campaigners say may increase abuse and trafficking.
Over 90 refugees from Burma on Monday returned home from Thailand as part of an official repatriation agreement between the Thai and Burmese governments.
Many refugees across Southeast Asia have no access to citizenship and few rights in the country where they live.
Bangladesh is lashed by typhoons, and the Rohingya camps are clustered in a part of the country that records the highest rainfall.
Cases of men and women enslaved in bonded labour or trafficked for marriage have started to emerge in India after they managed to escape or were rescued and found their way to Rohingya settlements there.
Officials from Burma and Bangladesh meet on Monday to discuss how to implement a deal signed in November on the repatriation of more than 650,000 Rohingya who have fled Burma since late August. But many say fear returning.