Which is the cheapest means of transport?

___________ trains run either an elevated backs or under the ground.

Most roads in towns and cities are________

____________ is the process of moving People, goods etc by barge, boat ,ship or Sailboat over a sea, ocean, lake, canal, river etc.

_________ is where a train runs along a set of two parallel steel rails.

Name the largest port in India.

Who introduced railway in India ?

India's railway network is the ________ in Asia and the fourth largest in the world.

How many ports are there in India's coast line ?

_________ ships are used to carry land transport goods.