With Modi I'm sure this was intentional, but I would like to point out that in a number of cultures "1,000 years" is used to refer to a very long period of time in a symbolic way. One example (also fashy) is "Banzai" in Japanese (and I just learned a few other SEA languages, albeit with their own spelling and pronunciation) directly translates to "10,000 years!" and is usually understood to mean an arbitrarily large number. Here's the wiki (with all the usual caveats about the Wiki often having questionable information about SE Asia)

Edit: Come to think of it English does this too, sometimes referring to old things lasting "for millennia".