Kacheguda–Tirupati Double Decker Express
The Kacheguda–Tirupati AC Double Decker Express was a Superfast Express connecting Hyderabad and Tirupati cities. It was one of the first AC Double Decker Express in the states of Telangana and Andhra Pradesh alongside Guntur–Kacheguda AC Double Decker Express. It had CZDAC coaches (AC chair-car) and VESDA (Very Early Smoke Detection with Alarm system), first of its kind, in a double-decker train. 