No, Pakistan did not declare war. As I said, that doesn't make it unconventional. Declared or not, the war was a conventional war, and conventional tactics were used by the army and air force. Indian air force, that is - not the one that was MIA.Let me rephrase my question. Did Pakistan declared a conventional warfare upon India that requires PAF to cross border of India? and this time do reply sensibly.
In all your gloating, you did forget to mention about what happen to IAF aircrafts which crossed into Pakistan and explicit instructions given to IAF not to cross Pakistani border
BTW Indian aircrafts did cross into Pakistan several times, as explained in the link given above by anotherr poster. The PAF was still MIA.