Lots been said and written about ancient India’s expertise in various fields of science and technology. Possibly there are some references to the same in Erich von Daniken’s “Chariots of the Gods?” too.
Came across this wonderful page which deals with a lot of these things in great detail: http://www.atributetohinduism.com/Vimanas.htm. Pretty interesting..
Just goes to say that we’re still going to only rediscover a lot of stuff lost during our transition to the modern [sic] era, not invent!