OK, that makes it much clearer then. One way to handle this (unless you've tried it already) is for her to continuously reassure her parents that the two of you have every intention of getting married and will do so within a year or two, once you're more settled in your careers. She can gently remind them that times have changed and people in our generation are getting married later. Better for you to just remain polite with her folks and let her take the lead in handling them - they're her parents. And good for her to be calm but firm when speaking to them.

One can understand where her parents are coming from though. As others have pointed out, the burden of 'shame' due to a failed relationship is a much heavier one for women than it is for men, in our society. They may just want to ensure you're not taking their daughter along for a ride.

And I'd suggest not to have second thoughts about your relationship solely on account of her parents' behaviour. If the two of you are on the same page, that's all that should matter really. I know parents in our country love meddling in the personal lives of their adult children, but if you're both adults and financially independent, you can refuse to give in to their pressure. It won't be easy, and she'll probably have to bear the brunt of it.