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      Question

      Where was the 18th International Olympiad on Astronomy

      and Astrophysics (IOAA) held in 2025?
      A Hyderabad Correct Answer Incorrect Answer
      B New Delhi Correct Answer Incorrect Answer
      C Mumbai Correct Answer Incorrect Answer
      D Bengaluru Correct Answer Incorrect Answer
      E Bhubaneswar Correct Answer Incorrect Answer

      Solution

      The 18th International Olympiad on Astronomy and Astrophysics (IOAA) was held in Mumbai in 2025. This event was hosted by the Homi Bhabha Centre at TIFR, marking the second time India has hosted the IOAA (the first was in Bhubaneswar in 2016).

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