The Hyderabad Railway Station serves as a significant hub in Pakistan, accommodating numerous trains. Positioned along the Karachi-Peshawar main line, Hyderabad Junction branches out into two railway lines: the Hyderabad–Badin Branch Line leading to Badin and the Hyderabad–Khokhrapar Branch Line heading towards Zero Point.

Typically, the Karachi Express offers four classes: Economy, AC, Standard, and AC Business. Meanwhile, the Karakoram Express provides three classes: Economy, AC, and Standard. The AC Sleeper class is exclusively available on the Karachi Express.

In addition to the aforementioned classes, passengers traveling on the Karachi Express have the option of booking the AC Sleeper class, which offers enhanced comfort for longer journeys. This class provides passengers with cozy sleeping berths, ensuring a restful experience throughout the trip. The inclusion of the AC Sleeper class caters to passengers seeking a higher level of comfort and privacy during their travels on the Karachi Express.