Mashallah, so you want Panjabi to be the national language ...
yes despite the fact that Punjabi is not spoken by 65% of Pakistani population :)
Khuddi sawal, khuddi jawab. Firstly, he (Pakistan4eveR) never said Punjabi should be the sole national language (open up your minds people, its not like Baluchis, sindhis or pakhtuns are in love with Urdu), as that would be the same as imposing Urdu onto these 3 other provinces where its not spoken. Many countries dont have just one national language, take India for instance where Hindi isnt the only national language, and its worked nicely for them.
It was a big mistake imposing Urdu on all these provinces (a mistake, because it was done with good intentions), and our national unity has always been weak and Urdu is one of the reasons. When Jinnah went to East Pakistan in 1948, and said 'let me make it clear to you that I want just one national language, and that will be Urdu', they forgave him and accepted his word because the man himself hardly knew Urdu. But when others after him tried to impose Urdu onto East Pakistan, we all know what happened. With that, I think its too far down the road to have 4-5 national languages now.