BENGALURU: A 40-year- old techie, who returned from US via Dubai, has been tested positive for coronavirus in Bengaluru . This is the first case of Covid-19 in Karnataka.He is currently undergoing treatment at Rajiv Gandhi Institute of Chest Diseases (RGICD). His wife and 13-year-old daughter and a colleague also have been admitted and their test reports are pending.The software engineer had returned to Bengaluru from US via Dubai on March 1. His driver, driver's wife and two children have been put in home isolation.According to the state health department, the techie is suspected to have come in contact with a total of 2,666 persons. A primary and secondary contact list has been made and an alert will be sounded.