The mortar mixing operation is carried out inside ta specially designed drum. The mixing blades provided within the drum create a shovelling effect which ensures proper mixing. Once mixed the unloading mechanism, which is essentially a swivelling mechanism with unloading handle & clutch provided with the drum, is used for transfering the mixed mortar from the drum. When the clutch lever is pressed, the drum lock disengages, which enables tilting of the drum downwards. Tension springs provided with the unloading mechanism prevents sudden tilting of the drum. Only a small amount of manual support is required while unloading. The bevel gear drive provides mechanical advantage for easy operation. Bevel gear having 40 teeth mounted on the periphery of rotating drum and driving pinion having 10 teeth with rotating lever constitutes the gear drive. The gear ratio thus obtained is 4:1, i.e. the drum completes one revolution while the rotating handle rotates four times. Mobility of the machine is facilitated by three castor wheels provided at the frame.