explain the meaning of this line- India has inland navigation waterways of 14,000 km in lenght out of these only 3,700 km are navigable by mechanised boats.
India has an extensive network of inland navigation comprising of canals, creeks, rivers etc, this statement means that these water bodies can be used for the transportation of goods i.e commercial purposes including transportation of freight. Mechanized implies that they can be used by power/motor boats.