No, I agreed it would be assuming Vimanas are examples of advanced tech in order for them to be considered circumstantial evidence.
My next statement after "of course" explains why, but you left that part out of your quote.

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"Where the telescope ends, the microscope begins. Which of the two has the greater view?" - Hugo

"Men occasionally stumble over the truth, but most pick themselves up and hurry off as if nothing had happened." - Churchill