1. When was the postal index system (Pin code system) started in India? Ans:- 1972 AD
2. Which is the largest public sector undertaking in India? Ans:- Indian Railways
3. Which is the train running between India and Pakistan? Ans:- Samjhauta and Thar Express
4. When did the first electric train run in India? Ans:- 1925 AD (Deccan Queen)
5. What is the total length of the railway route in India? Ans:- 63,974 km
6. Which is the longest rail tunnel in India? Ans:- Pir Panjal Tunnel (Jammu and Kashmir)
7. Which is the largest district of India in terms of area? Ans:- Ladakh
8. Which continent is completely covered with snow? Ans:- Antarctica
9. On what percentage of the Earth's surface is the expansion of the continents (terrestrial) found? Ans:- 29.2%
10. On which islands are there disputes between India and Bangladesh? Ans:- Kacha Tivu Island and Newmoor Island
11. What is the extent of India from north to south? Ans:- 3214 km
12. What is the difference between Standard Time of India and Greenwich Time? Ans:- 5 hours
13. What is the length of the land border of India? Ans:- 15200 km
14. India's longest tunnel 'Pir Panjal Tunnel' is in which state? Ans:- In Jammu and Kashmir
15. According to geologists, where the Himalayas are today, what was there before? Ans:- The ocean called Tethys
16. At which place was the first national park established in India? Ans:- Jim Corbett National Park Nainital (Uttarakhand)
17. Which sanctuary is famous for wild elephants? Ans:- Periyar (Kerala)
18. What is the Lahore-Delhi bus service called? Ans:- Sada-e-Sarhad
19. Which is the best type of coal? Ans:- Anthracite
20. Where was a large bathroom found in the Indus Valley Civilization? Ans:- Mohenjodaro
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