In a statement here today, the National Human Rights Commission (NHRC) has said that many of them have allegedly not been included in Census for land compensation, and women are being "captured and sexually exploited".
All the authorities concerned have been given four weeks' time to submit a detailed report in the matter.
"The Commission noted that the "Text of Exchange of Letters on Modalities for Implementation of India-Bangladesh Land Boundary Agreement 1974 and Protocol of 2011 to the Land Boundary Agreement" specify the modalities for implementation of the Land Boundary Agreement of 1974 and Protocol of 2011 to the Land Boundary Agreement," an NHRC statement said.
"Therefore, it is observed that if the allegations of the complainant are true, these incidents amount to violation of not only human rights but also the agreement between the two nations," the Commission said.
The complainant has alleged that most of the residents -- Indians of the Bangladeshi Enclaves in India and Indian Enclaves in Bangladesh -- have not been counted in the Census conducted in the years 2011 and 2015.
"There are 30,000 such persons," the complainant said.