(2)The person referred to in sub-section (1) shall also be liable to pay the excess charge mentioned in sub-section (3) in addition to the ordinary single fare for the distance which he has travelled, or where there is any doubt as to the station from which he started, the ordinary single fare from the station from which the train originally started, or if the tickets of passengers travelling in the train have been examined since the original starting of the train, the ordinary single fare from the place where the tickets were so examined or, in case of their having been examined more than once, were last examined.