Bengaluru: A thick security blanket has been thrown across major towns and cities of Karnataka following intelligence inputs about a possible terror attack, police sources said on Saturday.With heavy deployment of police personnel at every nook and corner of prominent places in the state,extensive checking was carried out using metal detector and sniffer dogs. Police sources said the alert was sounded Friday night asking all police officers to be vigilant and directing police to be present everywhere following intelligence inputs about a possible terror attack. Also Read – Uddhav bats for ‘Sena CM’There was intelligence input that a group of terrorists was planning to create terror and panic in the country, the sources said. Security has been strengthened at all important installations and public places such as bus stands, railway stations, temples, markets, malls and government offices. Besides Bengaluru, vigil has also been tightened in Hubballi-Dharwad, Kalaburagi, Raichur, Chitradurga, Mangaluru, Davangere, Udupi, Mysuru and Tumakuru. Police personnel were seen searching bags and frisking passengers at the railway stations and bus stands on Saturday. Multi-layer security arrangements were witnessed at important temples in the state.