Om,
From your simple example, I now understand the procedure to use this renderer with LaTeX.
The text pdf works for searching a single word and multiple adjacent words. In mahAvIrI, it didn't work for multiple words for some reasons.
I'm using Skim PDF reader in macOS. I didn't check on other platform.
Here is copy paste from the test pdf-
प्रसन्नतां या न गताऽ��षेकतस्तथा न मम्लौ वनवासदुःखतः।
It has some undesired characters. But, at least search works.
I'll try to contact Shreevatsa R. on other forum for help.
Thanks.