Ubisoft really threw Pune and Mumbai under the bus there.
The two studios were expected to make a full remake of a game on an absolutely new engine (technically Anvil evolved from Scimitar but there have been so many iterations in 20 years that you can't call it the same engine at this point), which means, essentially, make the game from scratch, and the teams received absolutely 0 support to make that happen. Pune had to scrounge through other Ubi studios to, if we boil it down, look for what essentially were volunteers that would be able to assist them in learning the toolsets.
Only after the announcement (with a lot of negative press) did there begin an effort to actually support the studios, but by that point, if I remember correctly the development time, for two years they were essentially alone on this.
And now Ubisoft Montreal "swoops in" to save the day, and all blame for the projects woes will be on Indian studios.
And it's working, even in this thread you already see people saying how Ubi shouldn't have given the project to people without expertise in the matter or whatnot.
If higher ups would actually care about evolving Pune and Mumbai as studios beyond the very tokenistic approach of 'here is a project we don't care about that you're a lead of now' until it started getting bad rep, this situation wouldn't have happened.