New Delhi, May 4 -- The Foreigners Cell of the Delhi Police, North-West district, apprehended four illegal Bangladeshi immigrants on Sunday following a sustained and meticulous surveillance operation, officials said.

The arrested individuals, who had disguised themselves as transgender persons, were found to be engaging in begging and other activities at traffic signals to avoid suspicion, they said.

According to Bhisham Singh, Deputy Commissioner of Police (North-West), the arrested individuals have been identified as as Md. Armaan alias Isha (21), Md. Arif alias Shilpa (26), Md. Jahid alias Mousam (21), and Md. Babul alias Pakhi (40) -- all residents of Bangladesh.

During the operation, two smartphones installed with the banned IMO a...