Underground railways are called 

The best means of transport in desert areas is

All the important towns and cities are connected by the

Which one of the following is the quickest means of transport?

Which is the cheap and comfortable mode of transport?

Who invented Aeroplane?

When was Air India started?

Which railway system is the largest in Asia?

The largest number of jobs are provided to the people in the industry of

Which one of the following carry both goods and passengers?