This isn't especially relevant. It barely covered a few scraps of northwest India. Most "Indo-Greek" civilization and culture was concentrated in Bactria and Sogdiana, not those few scraps of modern-day India, and BC Indo-Greek culture was not what we'd understand to be "Vedic Indian" so much as Persian-esque.
It also wasn't exactly part of the classical hellenistic civilization we talk about as the root of the western tradition, something of which I'm sure you're fully aware, making this a moot point.
It also wasn't exactly part of the classical hellenistic civilization we talk about as the root of the western tradition, something of which I'm sure you're fully aware, making this a moot point.