The holy shrine of Imam Reza (AS), eighth Shia Imam and grandson of Prophet Mohammad (PBUH) marked the mid-Shaban celebrations and the birth anniversary of Imam Mahdi (AS), the twelfth Shia Imam. Different courtyards at the holy shrine of Imam Reza (AS) have been adorned by the green flags with the name of Imam Mahdi (AS) to mark the auspicious occasion.