The incident took place last evening even as they were handed over to the state police early today, they said.
"We have arrested four Bangladeshis from two locations in Meghalaya frontier. One Shamin Noor Islam was apprehended in South West Garo Hills district, while the rest were arrested from Jaliakhola in East Jaintia Hills district," the BSF spokesperson said.
He said the other three were identified as Sarif Ahmed, Samyal Ahmed and Kamal of Kanaighat PS limits in Sylhet district.
During preliminary investigation, it was revealed that Sarif had worked in Saudi Arabia and had come to Bangladesh last month to meet his relatives, while Samyal was a businessman based in Sylhet.
Asked on how these people strayed into India, the BSF officer said they had hired a local boat man to take them to Jaliakhola.
The BSF spokesperson said vigil on the Indo-Bangladesh border has been intensified.
