(y)"mechanically propelled inland vessel" means-(i)any inland vessel in the inland waters which is propelled by mechanical means of propulsion; or(ii)floating units, floating surfaces, dumb vessels, barges, rigs, jetties or such other non-mechanically propelled inland vessel, which are towed or pushed with the assistance of another mechanically propelled vessel and used for carriage, storage, transportation and accommodation of passengers and cargo in or through inland waters;
