Prof. P C Sengupta proposed 4 November 2449 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 = 13 November 2585 BCE (10th day of the War)
(2) Prof. Sengupta proposed 10 January 2448 BCE as the day of Bhishma Nirvana. The tithi can be taken as Magha Vadya 7 or 8.
(3) Prof. Sengupta proposed his day of Bhishma Nirvana in such as way so as to have Bhishma on bed of arrows for 58 nights.
(4) Per proposal of Prof. Sengupta, Bhishma was on the bed of arrows for 58 nights (13 November 2449 BCE – 9/10 January 2448 BCE).
(5) Please refer to specific numbers and descriptions of Mahabharata text observations here.
Mahabharata references 1, 15, 16 and 17 corrborate proposal of Prof. Sengupta
Mahabharata references 2,3, 4 do not conflict/contradict proposal of Sengupta. 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 14 & 18 (11 of them) conflict/contradict this claimed timeline by Sengupta.
(7) Versimilitude (Truthlikeness) score (Sengupta) = 4 (corrborated) – 11 (conflicted/contradicted) = – 7
(8) Mahabharata references 6, 13 & 14 (related to Bhishma Nirvana) FALSIFY proposal of Prof. Sengupta.
(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. Sengupta.
Chapter references refer to chapters in my book: When did the Mahabharata War Happen?: The Mystery of Arundhati.