A look at the cross-border train known as the Samjhauta Express, which travels from Lahore to Delhi, and some of its passengers.

A look at a railway line which runs for just 20 miles from Janakpur in Nepal to Jaynagar junction in India, but which is now under threat of closure.

Partitioned in 1947, Bengal was divided in half, creating East Pakistan - a satellite state ruled by Pakistan. It was an unwelcome occupation. In 1971, they fought a war of independence and East Pakistan became the People's Republic of Bangladesh. 37 years later, the first train ran between India and Bangladesh - the Maitree Express.