Since August, 2012, when the Yamuna Expressway was opened for traffic, over 2.3 crore vehicles were detected breaking the speed limit till December 31, 2017, but only 17,883 were issued challans by traffic police in four UP districts of Agra, Aligarh, Mathura and Gautam Budh Nagar. Only 164 drivers have been challaned for rash driving …