Union transport minister Nitin Gadkari announced another six-lane national highway for Karnataka on Monday. Six lane highway announced between Karnataka's Chitradurga and Davangere Gadkari took to Twitter and wrote, “Adding an immense segment in modern-road connectivity for Karnataka people, NHAI is constructing a 6-lane wide section from Chitradurga to Davangere including Chitradurga Bypass.” The 72-kilometer national highway will cost the …