Brahmos II if the project is still alive is by definition a cooperation between India and Russia. It's touted as either a scramjet hypersonic glide or ballistic weapon dedicated to anti-shipping and anti-surface. This sounds identical to what the Zircon is claimed as. Since the Brahmos I is essentially a development on top of the Onyx/Yakhont, it would make sense that Brahmos II is like a development on Zircon - an Indianised version of Zircon developed for the specific requirements set by Indian navy or whichever branch.