Prof. Mohan Gupta proposed 17 October 1952 BCE as the first day of Mahabharata War.
Let’s evaluate this proposal, per the method and steps described here:
(1) Per his proposal, let’s calculate the day Bhishma fell in the battle = 26 October 1952 BCE (10th day of the War)
(2) Prof. Mohan Gupta proposed 24 December 1952 BCE as the day of Bhishma Nirvana. The tithi can be taken as Pausha or Magha Shukla 10.
(3) Prof. Mohan Gupta proposed his day of Bhishma Nirvana in such as way so as to have Bhishma on bed of arrows for 58 nights. In reality, per his proposal, Bhishma was on the bed of arrows for 59 nights and the day is removed from the day of winter solstice by 12/13 days.
(4) Per proposal of Prof. Mohan Gupta, Bhishma was on the bed of arrows for 59 nights (26 October 1952 BCE – 24 December 1952 BCE).
(5) Please refer to specific numbers and descriptions of Mahabharata text observations here.
Only one Mahabharata reference (#1) corrborates proposal of Prof. Mohan Gupta.
Mahabharata references 2,3, 4 do not conflict/contradict proposal of Mohan Gupta. I had to invent this new category to deal with criticism for claims by Mahabharata researchers when they did not take into account specific and relevant obserations of Mahabharata text, which they (these researchers) should have taken into account.
(6) Mahabharata references 5 through 18 (14 of them) conflict/contradict this claimed timeline by Mohan Gupta.
(7) Versimilitude (Truthlikeness) score (Mohan Gupta) = 1 (corrborated) – 14 (conflicted/contradicted) = – 13
(8) Mahabharata references 6, 13, 14, 15 & 16 (related to Bhishma Nirvana) FALSIFY proposal of Prof. Mohan Gupta.
(9) AV observation (chapter 6), numerous planetary observations (chapter 7), observations of phases and positions of the moon through 18 days of the War (chapter 8), all of them FALSIFY proposal of Prof. Mohan Gupta.
Chapter references refer to chapters in my book: When did the Mahabharata War Happen?: The Mystery of Arundhati.