The text mentions the 'naming ceremony' (Namakaran) as one of the sixteen rituals. Does it provide the full details of Hemadpant's original naming ceremony from his birth?

No, the text does not describe the author's original naming ceremony from birth. As explained in Chapter 2, the mention of the traditional "naming ceremony" ritual is used as a literary device to introduce a different kind of naming story. The author specifically promises to tell the sub-story of how he came to be called "Hemadpant," a name he acquired later in life. The purpose is to satisfy the reader's curiosity about the identity of the person credited at the end of each chapter, not to provide biographical details of his birth rituals.