TEHRAN - President Asif Ali Zardari Friday called on Iran’s Supreme Leader Ayatollah Seyyed Ali Khamenei and discussed with him various matters, including bilateral relations, regional situation and current challenges confronting the Ummah.The president, who is here to attend the two-day summit of the Non-Aligned Movement, was accompanied by PPP Chairman Bilawal Bhutto Zardari, Foreign Minister Hina Rabbani Khar and Interior Minister Rehman Malik.During his meeting at the Bait-e-Rehbari, the president conveyed his deepest condolences to the Iranian supreme leader over the loss of precious in recent earthquake that hit Ahar and the areas adjoining the historic city of Tabriz. He reiterated Pakistan’s readiness to provide all possible assistance in rehabilitation efforts. The president congratulated the Iranian supreme leader on holding of successful NAM Summit, which was attended by a large number of prominent world leaders and representatives from over 100 countries.The two leaders, while discussing bilateral relations, noted that the fraternal ties between Pakistan and Iran were deeply-rooted in their common heritage. Zardari said Pakistan was determined to build an enduring partnership with Iran and to cement the existing brotherly relations to promote mutual cooperation.He said being the important regional players; Pakistan and Iran were poised to play an important role in the peace, stability and socio-economic development of the region. The president said that the Ummah, at present, was facing unprecedented challenges that call for forging unity and close cooperation and coordination to overcome the common problems and issues.The two leaders also took stock of the regional situation, with particular focus on Afghanistan and Syria. Zardari said being the immediate neighbours, peace and stability in Afghanistan was important for both Pakistan and Iran. He said that Pakistan would continue supporting an Afghan-led and Afghan-owned process of reconciliation as the most viable option to ensure sustainable peace and stability in the neighbouring country.Expressing concern over the situation in Syria, the President said Pakistan wanted an immediate end to the bloodshed and would support any initiative to provide political space to Syrian parties for bringing peace and stability to their country. He said Pakistan believed in the principles of non-intervention and non-interference.