I have a valid US visa as I study there. I am returning back home via Germany. Do I need a transit visa in Germany?
Also, the ticket has no information about the flight terminals.
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If you are just in transit and do not intend to go out of the airport, you wouldn't need a visa.
However, to visit Germany you would need a Schengen visa. Ref: https://www.schengenvisainfo.com/visa-application-indian-passport-holders/