Searches were carried out on Sunday in cyber cafes and hotels in central Delhi's Paharganj area apparently in connection with probe into the terror designs of suspected LeT operative David Headley, who stayed there in March this year.
However, senior police officials refused to confirm whether these searches were in connection with investigations into Headley case and maintained that it was part of a "routine exercise".
Police officials visited various hotels, cyber cafes and telephone booths in the area and is understood to have collected details about their customers during March one and 15 this year.
Headley, who was arrested by by FBI in Chicago last month, had stayed in two hotels in Paharganj for three days from March seven.
"This is part of a routine exercise. Every cyber cafe is checked by police once a week and this area is frequented by people from other parts of the country," a senior police official said.
However, some hotel staff, cyber cafe owners and telephone booth operators said police had specifically asked for details of their customers during the first fortnight of March.
A team of Special Cell had visited hotels De Holiday Inn and Anand in Paharganj, where Headley stayed, three days ago and had spoken to staff there.