What is this symbol's history in the West? —Mangup Kale, Crimea
To me it looks like the Sri Yantra of South Asia,
but Crimea is far from there. Was it distributed during early Indo-European migrations to both Crimea and India? Or, was it shared via trade routes during a later period? Or, as some have suggested below, is it a recent (post-globalism) inscription?
Sri Yantra. Fertility symbol with 9 intertwining triangles. This mandala iconography combines the Flower of Life (sic), Lotus Symbol, and Four Directions Symbolism. Sri Yantra Inconography in Mangup Kale (Mangup Fortress), Crimea.
and thus doesn't seem to be of any help. Image retained for alternate view of markings.
The original intention with this question was: did this symbol started in India and later arrive at this site? Or, did it start with PIE (Yamnaya or similar) people and diffuse both to India and Crimea?