ASTAGFIRULLAH first of all you lied saying he did Mubahla and then you can't prove it. Do you really think Sunni Ulema will hide such a thing? Mirza Tahir ran all his life from Sunni Ulema and was never prepared to do a Munazira or Mubahla with anyone. No Sunni Scholar till today has ever mentioned that Pir Abdul Qadir Sahib did Mubahla with Mirza Tahir, it isn't even mentioned in their Khatmenabuwat conference every year!
As for who will be the judges in the debate, I don't think he will even debate Mufti Sahib because he doesn't look sincere. How can you debate in a Pakistani Court? Its not a debate with a Qadiyani here, you are talking about a debate with a Sunni Scholar. Whichever Sunni Scholar in Pakistan has been told that Pir Abdul Qadir Sahib said they want to debate in Pakistani Court, Wallah all they did was laugh! They said how is a debate possible in Pakistans Court! This is a way to run from the debate. They will go Pakistan and file a case against them, their will be no debate!