It's all about how many YOUNG fans you have, because they are the ones that are super active on insta.
Also these international stars we compare with have had a recent breakthrough, unlike PC and DP who have been around for close to two decades.
Imagine some 40+ man/woman who likes an Indian actress, follows them but forgets about their insta account after that because they have bigger things to deal with. So these older stars have a lot of older followers that are dormant/inactive.
For eg look at JLo, almost 200 million followers but barely 1% engagement. So it's not about followers but how young they are.
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