KABUL - Saudi Arabia will build a massive Islamic centre complete with a university and a mosque in Afghanistan, an Afghan minister said Monday, describing the project as “grand and unique”. Estimated to cost up to $100 million, the centre on a hilltop in central Kabul will house up to 5,000 students, Dayi-Ul Haq Abed, the acting Hajj and religious affairs minister told AFP. It will be named after Saudi King Abdullah bin Abdulaziz, the minister added. “The agreement was signed last week in Jeddah. The construction will start next year, in couple of months or so,” Abed said.  The mosque, similar to the Faisal Mosque in the Pakistani capital of Islamabad that was also built by KSA  in 1980s.