President Asif Ali Zardari and Prime Minister Syed Yousuf Raza Gilani on Tuesday greeted the overseas Pakistanis for getting the permission to participate in the electoral process. The decision of the Election Commission of Pakistan (ECP) will give voting rights to 3.7 million overseas Pakistanis. The President and the Prime Minister, in separate messages, expressed the hope that it would provide them an opportunity to play their positive role in an effective manner.