1. Which is the longest rail tunnel in India ?

Answer: Pir Panjal (J&k, 11215 metre)

2. Which is the largest Mosque in India ?

Answer: Jama Masjid (Delhi)

3. Which is smallest state by area of India ?

Answer: Goa

4. Which is the Densest populated State of India ?

Answer: West Bengal

5. Which is the Largest lake of the world ?

Answer: Caspian Sea (371,000 sq km)

6. Which is the largest sea in the world ?

Answer:

Philippine Sea

7. Which is the largest Mosque in World ?

Answer: Masjid al Haram (Saudi Arabia)