Members of the group, which included three women and four minors, said they came to this side of the border in the wake of recent "atrocities" against minorities in Bangladesh, a top BSF official told PTI.
The 13 hailing from Anandpur village under Netrakona district of Bangladesh said they were going to Cooch Behar in north Bengal to meet their relatives but were willing to stay put there, he said.
"They also felt threatened following the terror attack in Dhaka," the official claimed requesting anonymity.