The Wright Brothers made their first attempt at powered man controlled flight in 1903 and has been developing unpowered flight before that. According to the wiki page that pic is in. The text was first published in 1959 in Hindi then in English.
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So how did the Wright Brothers use them when their method off flight design are different? And what other books are on flight that Sri Lanka had that was published around the late 1800 and early 1900s and how many do not involved psychic channeling?
Not trying to troll, but I don't think the Wright brothers had no influence from them. As for the Vimana (i apologize if I use the word incorrectly) I don't now if it actually flew, but I'm willing to believe their is mystic mojo in the works.