All male members of the Ahmadiyya Muslim Community automatically become members of the Majlis Ansarullah sub organisation on 1st January after their 40th birthday.
The organisation is divided in to two sections, Saff-e-Awal (55 years of age and above) and Saff-e-Doem (40 years to 54 years).
Sadr Majlis (President) and Naib Sadr Saff-e-Doem (Vice President) are elected for a period of two years by the National Majlis-e-Shura (Elected Executive Body).
The organisations National Amila (Executive) is appointed by Sadr Majlis after formal approval of Hazrat Khalifatul Masih on a yearly basis. The Executive consists of Naib Sadr Awwal (Senior Vice President), Naib Sadran (Vice Presidents), Muavin Sadran (Special assistants to Sadr), Qaideen (Heads of Departments), Zaeem-e-Ala London and Auditor.
The UK is divided into 18 Regions, which in turn are sub-divided in to Majaalis.
Each Region is headed by the Regional Nazim (Regional President) appointed by Sadr Majlis on a yearly basis. The Majaalis are headed by local head known as the Zaeem.