When Kallu fails to escape from the jail, after Raghuveer beats him up there is no blood on his face. But in the cell scene where he has been chained by the officers, there is blood there.
When Kallu is driving the car which he borrowed from the showroom, he moves the gear lever inconsistently to put the car into reverse - sometimes backwards, sometimes forwards.
During the scene in which Amitabh destroys the car with Jagdeep sitting beside him, it is clearly visible in the close-up shots that the sky in the background is not moving at all, indicating that these shots were taken in a a still car.