Noone told that. CCP is not even communism.
Chinese apps collect a fucking lot of data and Indian People innocently use those shit apps like ShareIt because inertia and maybe network effects. If you want to share a movie / song something with an ordinary indian citizen you'd have needed ShareIt which is a piece of shit. Technical ones among us use Google Files or something like that but I have so far refused to use ShareIt because it is such shady adware. Note that most Indians don't have Laptop / PC and USB / Pendrives aren't ubiquitous.
Now that there is some friction between China and India and given the nature of Chinese Governance these apps are threat to national security.
Ideally they could have banned PUBG also, the shit is ruining many lives.
I'm not taking sides and I don't have the technical expertise to judge everything said there. It's just that I'd be much more comfortable if all of those "evidences" came from a more trusted source & not a reddit comment from god-knows-who.
Honestly, as someone who doesn't belong to China/USA/India and genuinely curious about this, I'm tired of seeing all this "but but communist evil" and not much in the way of actual evidence.