Which B1 German exam should I take for permanent residence?

All four are accepted at the Ausländerbehörde and for citizenship: Goethe-Zertifikat B1 (about €200), telc Deutsch B1 (about €180, the most widely available), the DTZ (€25, the cheapest, taken at the end of an Integrationskurs) and ÖSD B1 (about €160). Pick on cost and dates, not prestige: they carry the same weight. The certificate does not expire for immigration purposes, so take it when you are ready. Preparation time by starting level and what each section looks like: /guides/german-b1-exam-indians If your situation is different, reply below with the details and I will try to help, or someone who has been through it will.