As far as this discussion is concerned, it does not seem that we need to be much bothered about the history and background. What we need to focus on is the word in its current context, so, Indic and Indian languages, with particular reference to display standards, and therefore the direction of work needed to ensure that pages can display correctly on as many devices as follow the standards.

From recent posts, it seems that Unicode acknowledges two families of scripts, namely Indic and Brahmic. If this is the correct situation, I see no confusion in defining the work ahead.

--
Vickram
Fool On The Hill
"The cameras were all around. We've got you taped; you're in the play. 
Here's your I.D. (Ideal for identifying one and all.) 
Invest your life in the memory bank; ours the interest and we thank you."
Jethro Tull: A Passion Play (1973)