Modern world has seen many wars, the biggest war that modern world had seen is World War II, which has accounted for 73 million causalities.  But, according to Indian mythology (for instance), Kurukshetra was the Great War that world has ever seen. According to Mahabharata, One billion 660 million and 20,000 men have fallen in this battle (Mahabharata, book 11, chapter 6, verses 7&8)¹.  As many people know Mahabharata has 18 parvas, among which 6^th, 7^th, 8^th and 9^th parvas deal with the Great...