Naru embarked on a life-long cerebral journey to find acceptable explanations for a few unanswered questions that arose in his mind during his school days. Those previously unexplained issues were critical to understanding the history, geography, and concept of the Bengal region, popularly known as ‘Bangla’.

In his journey through life, he was able to find a previously unheard of but logically sustainable explanation of the word ‘Banga’ and one more closely associated word, ‘Bangal’. That explanation was in consonance with the present understanding of the process of geological evolution of the Bengal Basin. It was also capable of aligning itself with the accepted concept of the geological evolution of that basin.

However, something even more startling occurred to Naru’s mind. As his logic-based journey to arrive at an acceptable and verifiable explanation of the word ‘Banga’ was approaching its end, the information gathered by him, in conjunction with...