The top Iranian lawmaker, who will leave Tehran for Geneva on Sunday afternoon along with a parliamentary delegation, will deliver a speech at the 131st IPU meeting on Tuesday.
Over 700 lawmakers from 141 countries, including 104 speakers and vice-speakers, will attend the confab from October 12 to 16.
The Geneva-based Inter-Parliamentary Union, which is an important non-governmental parliamentary institution, was founded in 1889.