Article Detail Which is the longest rail tunnel in India ? Answer: Pir Panjal (J&k, 11215 metre) Similar Questions : 1. Which is the lightest metal ? Answer: Lithium 2. Which is the Densest populated State of India ? Answer: West Bengal 3. Which is longest river of South India ? Answer: Godavari 4. Which is the shortest day in the year ? Answer: December 22 5. Longest rail tunnel in the world ? Answer: Seikan Tunnel (Japan - 53.9 Km) 6. Which is Highest Award in India ? Answer: Bharat Ratna 7. Which is longest river of India Answer: Ganges Read more from - Longest and Largest