Police today said that the immigrants - three from Nepal and five from Bangladesh - were questioned by sleuths from Intelligence Bureau, Research and Analysis Wing and state Intelligence and security units.
"The group had crossed the border in search of employment. Their handlers remain at large and further probe has been ordered to bust the ring of illegal immigration in the city", Senior Superintendent of Police J. Ravinder Gaud said.
According to preliminary investigations, their aim was to go to Gulf countries for employment purposes from here.