Generally Indian school leaving certificates are recognised in Germany. So that’s not a major issue while applying to German Universities. But one thing should be kept in mind while applying to the bachelor programs in Germany. One can only study technical subjects if they have Physics, Chemistry and Mathematics in their 12th standard. For Medicine or other medical studies, one should have passed out their class 12th with Physics, Chemistry and Biology. Similarly for Management degree programs, you have been passed with Commerce as your majors in your final school year. Same aaplies to Humanities. The rule is simply clear, your subjects that you have opted in 12th gives you a subject restricted access to the bachelor programs in Germany.