Former petroleum minister Asim Hussain, in a video statement aired on local media, hurled startling allegations on former president Asif Ali Zardari's foster brother Owais Muzaffar alias Tappi.

In the video statement, Asim Hussain said that former Sindh minister Owais Muzaffar was the 'working' chief minister of Sindh during the second reign of Pakistan Peoples Party (PPP) and was involved in doing all sorts of corruption.

"Once a doctor told me that a Rs600 vaccine was bought for Rs1,000 but it was later sold in a market in Multan. Upon investigation into the case I found the allegations to be true. I complained about this to Zardari and asked him to stop Owais Muzaffar from playing with people's lives, after which Owais hurled threats at me," Asim Hussain said in the video statement.

"Tappi told me, Mai tumhe aisa teeka lagaunga ke yaad rakhoge (I will hit you in a way, you will never forget)" the former minister said quoting Tappi.

The close aide of former president Asif Ali Zardari, Dr Asim Hussain was arrested by Sindh Rangers from the office of Higher Education Commission in Clifton on August 26, 2015.

A Joint Investigation Team (JIT) is investigating Dr Asim’s alleged corruption and his role in terror financing.

On the other hand, NAB is also investigating three new corruption cases against Dr Asim.

These include illegal affiliation of medical colleges with Pakistan Medical and Dental Council (PMDC), issuance of licences for dozens of Compressed Natural Gas (CNG) stations and other corrupt practices.