The design is broadly based on Ashok Leyland Super Stallion truck.

Thus, the development of FAT or Field Artillery Tractor was started as a private venture to replace the ageing fleet of Scania trucks.

The truck runs on full-time 4-wheel drive system with all axles having differential lock.

[7] Other features include a fire and smoke detection unit, an infrared rear-view camera and Indeginised Rotex central tire inflation system.

[10] In July 2023, another order was placed for Field Artillery Tractor (FAT) 4×4 [Ashok Leyland Topchi] and Gun Towing Vehicle (GTV) 6×6 worth ₹800 crore.