National Accountability Bureau (NAB) Chairman Justice (retd) Javaid Iqbal Friday said that the Bureau was taking all necessary measures to eradicate corruption from the country.He said this during a visit to NAB Lahore offices where he was briefed by the Combined Investigation Teams about mega corruption cases. Deputy Prosecutor General Accountability and other prosecutors were also present. The NAB officers briefed the chairman about money laundering and other cases against the Sharif family, a complaint verification against principal secretary to chief minister Tahir Khurshid, a reference against Fawad Hassan Fawad and Ahad Khan, progress on ongoing probe against former defence minister Khwaja Muhammad Asif, investigation against ex-MNA Rana Sanaullah and other important cases. The NAB chairman directed the prosecutors to appear before the NAB courts with full preparation.