Acting on a tip off, the BSF personnel seized the counterfeit currency during a special operation launched by them at Gopalnagar Border Outpost area under Kaliachak police station in Malda District, the BSF officials said.
When BSF troops challenged, the miscreants fled away from the spot by taking the advantage of darkness and inclement weather.
The BSF troops thoroughly searched the spot and recovered the FICN concealed in a plastic bag thrown by the Bangladeshi smugglers into the Indian side, the officials said.