Hyderabad: The city’s three major railway stations have failed a national audit of passenger amenities, with a water sample from Nampally testing positive for E. coli and inspectors flagging shortages of drinking water, toilets and signage across Nampally, Secunderabad and Kacheguda. The findings are part of a Comptroller and Auditor General (CAG) audit of passenger amenities and sanitation at 512 non-suburban railway stations across 16 railway …