BENGALURU: Bengaluru Metro’s Challaghatta station on the Purple Line beyond Kengeri, which has been delayed considerably, has now encountered a new problem due to the recently inaugurated Bengaluru-Mysuru Expressway. The ramp of this construction by the National Highways Authority of India (NHAI) lands very close to the Metro station, posing an enormous risk to pedestrians, particularly students and patients of the Rajeshwari Medical College and Hospital across, who are expected to use the station in large numbers after it commences operation.