Islamabad: President Asif Ali Zardari has conferred the award of Nishan-i-Pakistan upon Crown Prince of Abu Dhabi Sheikh Khaled bin Mohammed bin Zayed Al Nahyan. The President gave the award at a special investiture ceremony in Islamabad today. According to Radio Pakistan, Prime Minister Shehbaz Sharif, federal ministers, parliamentarians as well as senior civil and military officials were also present on the occasion.