Thank you Dominik. Indeed, at least one question answered, in n. 12: transliterate प्रउग as pra:uga.

Best wishes,

Arlo


From: wujastyk@gmail.com
Date: Sat, 28 Dec 2013 12:52:12 +0100
Subject: Re: [INDOLOGY] ISO 15919
To: arlogriffiths@hotmail.com
CC: indology@list.indology.info

Dear Arlo,
Dr Anthony Stone was involved in creating ISO 15919, and I made a link to his pages from
One can't get a free copy of the standard there, I'm afraid, although Anthony's pages are full of information and may answer some questions. 

Best,
Dominik