Law Minister Farogh Naseem said that National Accountability Bureau (NAB) is an independent institution and the government is not interfering in its matters.

He explained NAB Ordinance after Opposition Leader Shehbaz Sharif's address during session of National Assembly today.  

Farogh Naseem added that section 24 of NAB Ordinance gives blanket powers to the Accountability Bureau to arrest any person during inquiry and investigation.  He said the NAB exercised its power under this section to arrest Shahbaz Sharif.

The Law Minister said the lower House is not a court of law and it cannot declare the proceedings of NAB lawful or unlawful.

Prior to that, President PML-N and Opposition Leader Shahbaz Sharif on Wednesday has said that Pakistan Tehreek-e-Insaaf (PTI) and National Accountability Beauru (NAB) are working together.

Shahbaz claimed that the NAB is targeting opposition parties, "I will not talk about the merits of my case, but I want to discuss the 'unholy' alliance between government and NAB", Shahbaz added.

"I want to tell you that I have burnt the midnight oil to bring peace and prosperity in Punjab, my hands are clean and all the allegations against me are baseless," he told.

"NAB officers told me there are no graft charges against me", he further added.

Elaborating on his allegations, Shahbaz said, "terrorism cases were filed against me on May 13 and NAB prepared my arrest orders between July 5-6. However, the decision to arrest me was implemented ahead of the by-polls so it could serve a purpose."

Earlier today, the leader of the opposition in the National Assembly, who has been in the NAB's custody since October 5 in connection to the Ashiana Housing Scheme case. 

Last week, NA Speaker Asad Qaiser issued Shehbaz's production orders. Wednesday's NA session has been summoned on a requisition of PML-N leaders, shortly after Shahbaz's arrest.