A day after the NIA busted IS module in Hyderabad, security was beefed up in the IT hub and at the Shamshabad airport here on Thursday.
State police has intensified frisking of vehicle at various places across the city and in particular Madhapur and Gachibowli, the two IT clusters housing several multinational tech giants.
Cyberabad Police also conducted searches at hotels, lodges, shopping malls and other public places.
Meanwhile, a security alert was sounded at the Rajiv Gandhi International Airport at Shamshabad. The RGI Airport authorities banned the entry of visitors to the premises while police erected additional checkpoints in the airport area.
The NIA continued to grill the five suspects on Thursday also to unravel their alleged plan to attack locations across Hyderabad.