I think the eau de vie is getting to you, Nans: but, in fact, this dreary old bat is very well known. The chap to search for is Nicholas Goodrick-Clarke who wrote a book called "Black Sun" (only 65% drivel) about her.
I'm fairly sure it's still in print.
In fact, she was largely an agitator who used a mish-mash of Hindu gibberish in an attempt to inspire the Indian peasantry to rise up against the
benevolent rule of His Majesty, the King Emperor, and aid the Japs in WWII ( "Bose" is the name of the principal stinker).
Happily, the vast majority of the sub-Continentals ignored her drivel.
Search the author above or say Devi+ Hitler and I'm sure you'll find a great deal.
But, I shouldn't bother.