ISLAMABAD: The Executive Board of the National Accountability Bureau Wednesday gave approval for filing a corruption reference against the PPP Vice Chairman and ex-prime minister Syed Yusuf Raza Gilani for allegedly misusing authority in the award of a contract, causing millions of rupees loss to the national exchequer.The board met here with Chairman NAB Justice Javed Iqbal in the chair. The board approved various complaints verification, inquiries and investigations. The board approved the...