My girlfriend family is not in favour of our relation and they want to kill both of us. What should we do ?

I'm sorry you're dealing with this right now. Is there a way to get you and your girlfriend away from the family? Contacting the authorities would be the best thing to do to make sure you're both out of harm's way. Alternatively, try empathizing with the family. What do you think makes them feel so negatively about your relationship? If there's a way you can compromise, it would be a win-win for both sides! Death threats are a serious matter, so it's understandable if you dont feel comfortable talking to them in person. If this is the case, refer to the first portion of this answer. Be safe! -J