Answer
(Fatwa: 863/774=H/1429)
و عد الله الذين آمنوا منكم و عملوا الصالحات ليستخلفنھم في الأرض كما استخلف الذين من قبلهم (الآیۃ)
This verse suggests that first condition for forming government is to have good deeds and strong faith, after that the second thing is establishing government, but it is not essentially required, the real thing which is required is to follow the Shariah. Therefore, efforts should be made to fulfil the first condition as much as possible. Then Allah Almighty will inspire what action plan is to be laid down in order to establish government.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband