It's impossible to tell what or if anything happened at tarbela. Simply put, if pak had not declared balakot, we would not have come to know.
It is possible that iaf used brahmos-a with low or no warhead to target their f16s. Just to demonstrate and make a point, rather than create a spectacle, that pak had to accept.
It is likely that iaf did not breach airspace directly, since that would have activated entire chain of defenses, caps and could not have gone unnoticed.
Test of brahmos-a against land targets recently also raises this point. Also, no video was released. Just a thought.
It is possible that iaf used brahmos-a with low or no warhead to target their f16s. Just to demonstrate and make a point, rather than create a spectacle, that pak had to accept.
It is likely that iaf did not breach airspace directly, since that would have activated entire chain of defenses, caps and could not have gone unnoticed.
Test of brahmos-a against land targets recently also raises this point. Also, no video was released. Just a thought.