Article Detail Which is the longest rail tunnel in India ? Answer: Pir Panjal (J&k, 11215 metre) Similar Questions : 1. Longest rail tunnel in the world ? Answer: Seikan Tunnel (Japan - 53.9 Km) 2. Which is the highest waterfall in the world ? Answer: Angel, Venezuela 3. Which is the Densest populated State of India ? Answer: West Bengal 4. What is the name of tallest Animal ? Answer: Giraffe 5. Which is Longest Dam in India ? Answer: Hirakod Dam (Orissa) 6. Which is the shortest day in the year ? Answer: December 22 7. Which is Place of heaviest rainfall ? Answer: Mausinram (Meghalaya) Read more from - Longest and Largest