The first Indian railway train in $1853$, journeyed between:

With reference to Indian transport systems, consider the following statements:
1. The Indian railway system is the largest in the world. 
2. Among the states, Kerala has the highest density of surface road. 
3. National Highway number 7 is the longest in the country. 
Which of these statements are correct? 

Consider the following statements:
1. Marmagaon port is situated at the mouth of Zuari river.
2. Kolkata port is connected by NH-$41$.
Which of the statements given above is/are true?

Consider the following statements:
1. Western dedicated freight corridor is from Dadri in Uttar Pradesh to Jawaharlal Nehru Port Trust near Mumbai.
2. Germany is assisting the project.
Which of the above statements is/are true?