Guwahati, Oct. 19 -- The Railway Protection Force (RPF) reportedly detained three Bangladeshi nationals at Lumding railway station in Assam on Monday after an operation aboard the Guwahati-Sairang Express, according to preliminary information.

The three men were identified as Bilal Hussain, Amir Ali and Hassan Mia, residents of Sunamganj district in Bangladesh. They were detained from train number 15609, the Guwahati-Sairang Express.

Initial accounts suggest the men entered India through the India-Bangladesh border in West Bengal's Murshidabad region, although the exact timeline of their entry remains unclear. The men reportedly gave differing accounts of their movements.

Ali told authorities that he had paid a suspected tout Rs 3,000-...