These included the deterioration of infrastructure, the inability to purchase fuel from Pakistan State Oil due to exhausting its credit limit, liquidity constraints that led to delays in payment of its employees' salaries and pensions, and the destruction of railway facilities by angry mobs in 2007.

[8] The private company provided modern facilities like LCD TVs, Wi-Fi, Internet, water dispensers, and lavish food on trains for the first time in Pakistan.

[9] Having originally been a luxury rail service, the Pak Business Express experienced low ridership numbers during its initial weeks.

This lack of demand forced Four Brothers to introduce an economy class within a few weeks of its launch with a lower fare.

[8] However, due to a financial dispute on 29 October 2015, Pakistan Railways ended its joint venture with Four Brothers Private Limited and took control of Business Express.