I've seen this around a lot. Some random storefronts; Sugarpova used it in the past as a headline typeface, etc.
It's my understanding that this is a Latin companion to some older Microsoft multiscript typefaces. I knew one font where there could be found, but have recently been unable to track it down again. I want to say it was called MS Bangla?
In any case, would love to know more about how this came to exist.