Geography!

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Across
  1. 3. Desert river that disappears into the Rann of Kutch without reaching the sea
  2. 6. Only active volcano in India
  3. 12. Southernmost Eastern Ghats range meeting the Nilgiris
  4. 13. River whose course reversal near Namcha Barwa creates one of the deepest gorges on Earth
  5. 14. River forming Dhuandhar Falls at Bhedaghat
  6. 15. Coastal plain in Karnataka between Western Ghats and Arabian Sea
  7. 18. Arabian Sea island group of coral origin
  8. 19. Cold desert valley drained by Chandra and Bhaga rivers
  9. 20. Highest peak of the Eastern Ghats
Down
  1. 1. Tectonic valley between Greater Himalaya and Pir Panjal
  2. 2. Asias largest brackish water lagoon on Indias east coast
  3. 4. Biosphere reserve with shola grassland ecosystem in Tamil Nadu
  4. 5. Inland Indian state crossed by the Tropic of Cancer with no coastline
  5. 7. Estuary formed by a west flowing river near Bharuch
  6. 8. Western Ghats escarpment marking sudden rise from coastal plain
  7. 9. High altitude pass connecting Leh to Nubra Valley
  8. 10. Plateau between the Aravallis with internal drainage and salt lakes like Sambhar
  9. 11. Tectonic line dividing Indo Gangetic Plain and Peninsular Plateau
  10. 16. Basalt derived soil ideal for cotton cultivation
  11. 17. Easternmost Himalayan hill system