Important facts about Indian Railways: -  1 is a train running between India and Pakistan - Samjhauta Express 2 is a train running between India and Bangladesh- Friendship Express 3 Indian train which gave UNESCO World Heritage status- Darjeeling Himalayan Railway 4 Indian Railways transport around 25 million passengers per day.  5 Dibrugarh Kanyakumari Vivek Express is the longest rail route in the Indian subcontinent.