Leaving the typical deniers aside - there was a way to see claims of PAF attacks in a certain form. Assuming the S-400 was only facing CM-400s with Jamming support.
First, assuming you have JF17 out of Shortkot - they can engage a S-400 at Adampur well into Pakistan airspace and still quite safe from the S-400. They launch 4 CM-400s.
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The weapons can be detected and for good measure I added a Rafale as well but the first sensors are Indian ground radars and a MR-SAM I also added at Adampur.
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Now, when the PAF does launch - notice something - the S-400 cannot engage. Two reasons, one is curvature but also there is NOT ENOUGH ILLUMINATION return to provide guidance.
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Just as a FYI - if you have a Rafale in that area - it actually could engage the CM-400s with a meteor if so equipped much earlier than the S-400 could.
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But, it isnt until past Tarn Taran that the S-400 can actually engage the weapons coming in.
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I ran this scenario 5 times for good measure - and 4 out of the 5 times the S-400 even under jamming is able to eventually get all 4 CM-400s launched at it. Using 12-14 missiles in the process.
However , in one case it was unable to intercept with radar and missiles both under jamming by a DA-20 and the cheeseboard got taken out and the site was dead.
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