The German authorities generally don't take kindly to companies trying to skirt around labor and immigration laws.
No guarantee that they would deal with the issue promptly, of course, but some kind of threat or formal inquiry to whoever was in charge at Samsung probably would have made them back down.
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You have a lot of faith in the German authorities. The Indian embassy and the Indian consulate would be probably of more help.
The German authorities generally don't take kindly to companies trying to skirt around labor and immigration laws.
No guarantee that they would deal with the issue promptly, of course, but some kind of threat or formal inquiry to whoever was in charge at Samsung probably would have made them back down.