The government of Pakistan's Punjab province has decided to disassociate itself from the case against Jamaat-ud-Dawa chief and Lashkar-e-Tayiba founder Hafiz Muhammad Saeed, the suspected mastermind behind the terror attack on Mumbai, and filed a plea for its withdrawal.On Monday, the provincial government informed Pakistan's Supreme Court that it has challenged the release of Saeed due to certain 'confidential evidence' against him.