The oldest working refinery in the world is at--

আন্তর্জাতিক বিষয়াবলি World Record 07 Oct, 2020

প্রশ্ন The oldest working refinery in the world is at--

  • ক.
    Digboi
  • খ.
    Baroda
  • গ.
    Koyali
  • ঘ.
    Guwahati

সঠিক উত্তর

Digboi

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