Chief of Army Staff Ashfaq Pervez Kayani called on President Zardari at the Presidency on Wednesday, Dunya News reported.The current security situation and the preparedness of Army came under discussion during the meeting. Kayani also discussed the ongoing army offensive in South Waziristan and the rehabilitation of IDPs with the President.Later, Army Chief Kayani also called on Prime Minister Syed Yousuf Raza Gilani at PM House Islamabad.