Kasab said that police took him from his cell on the day the attacks started because he resembled one of the gunmen.
He claims that they shot him to make it look as if he had been involved in the attacks and re-arrested him.
Kasab said he was initially brought into police custody after wandering around the city late at night, looking for a place to stay.
His Pakistani citizenship aroused suspicion, he said.
Kasab, who earlier confessed to opening fire on people inside the station, could face the death penalty if convicted.