froma Mani pad you can see what your target is, you do not fire it just looking at the radar.. no? In a stand-off it makes more sense to shoot something by sending a SAM its way rather wait for making it clear wether a target was civilian no country will risk a civilian aircraft in a stand-off. During Kargil conflict did you wait to bring down a chopper then? Also, a searcher II has a smaller signature than a chopper, go kid yourself saying it could have been a chopper!! Lol and you say that during a stand-off Pakistan was not prepared for a full war to place weapon systems around?
If you would have shot the helo you would have known what it meant, in peace time you declare war by shooting before establishing contant, a stand-off is not called peace time