Give access to the neutral sources, they will tell.
In a war, circumstantial evidences are enough ascertain the damage.
There are credible images of debris of your jets scattered across the boundaries. Your media initially aired reports of your losses, and then the reports were forcibly got removed.
There are reports that your S400 operator died.. his family members told the media that he was a S-400 operator of some sort. Of course, India is sane enough to not post a S-400 operator on LoC.. only a fool can accept it. Pakistan claimed the radar was taken out, and you couldn't show the radar when Modiji posed himself in front of S-400. We told you before Modiji visited.. that we have taken out radar, so there is no reason for you to say that you didn't have the opportunity to show the radar.
Another credible (not circumstantial) evidence is that your army officials accepted that there were losses. Poor army officials got the burnt of hindutva online trolls.
The biggest evidence of all if Modiji saying:
PAKISTAN NE HUM PE HI HAMLA KARDIA. Of course Modiji won't say that unless it realy hurt him in his behind.. isn't it?