In the drive, which commenced in the wee hours of the day, 684 persons were picked up from areas located along the Fourth Furlong and Pynthorbah near the Polo Grounds.
"684 persons were taken to the Sadar and Madanryting police stations for verification," East Khasi Hills Superintendent of Police (SP) M Kharkrang told PTI here.
Of them, 596 were released after they produced valid documents, while the rest 88 were released with sureties, Kharkrang said.
On the need for a sudden drive, the SP said, "This was done as a precaution against criminals and illegal foreign nationals from settling in parts of the city."
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