mentioned in sub- section (2) of Section 10. They are 'goods carriage', 'heavy-goods vehicle', 'heavy passenger motorvehicle', 'invalid carriage', 'light motor-vehicle', 'maxi-cab', 'medium goods vehicle', 'medium passenger motor-vehicle', 'motor-cab', 'motorcycle', 'omnibus', 'private service vehicle', 'semi-trailer', 'tourist vehicle', 'tractor', 'trailer', and 'transport vehicle'. In claims for compensation for accidents, various kinds of breaches with regard to the conditions of driving licences arise for consideration before the Tribunal. A person possessing a driving licence for 'motorcycle without gear', for which he has no licence. Cases may also arise where a holder of driving licence for 'light motor vehicle' is found to be driving a 'maxi-cab', 'motor-cab' or 'omnibus' for which he has no licence. In each case on evidence led before the Claims Tribunal, a decision has to be taken whether the fact of the driver possessing licence for one type of vehicle but found driving another type of vehicle, was the main or contributory cause of accident. If on facts, it is found that accident was caused solely because of some other unforeseen or intervening causes like mechanical failures and similar other causes having no nexus with driver not possessing requisite type of licence, the insurer will not be allowed to avoid its liability merely for technical breach of conditions concerning driving licence.