JSW Steel campus in Toranagallu Village in Ballari, about 320 kms from Bengaluru. Most of the infections can be reportedly traced back to a 35-year old employee.The Ballari district administration has classified the entire area with an expanse of around 8,000 acres and comprising about 20,000 people as a containment zone, government officials said.Ballari reported 51 cases in the 24 hour period until 5 pm on Tuesday taking the total to 1,388 of which 755 are active, shows government data.The rapid rise in covid-19 cases in Ballari, Dakshina Kannada and Bengaluru district, among others, has led to higher number of cases being reported in Karnataka which has confirmed 11,573 cases in the last seven days.