I'm thinking of speaking in an Indian accent when being asked if I speak English
Do you think that you will get called out for faking an accent?
I'm going to Sweden, there I will meet many people from my future country
Even if they can't tell the difference it is not good to lie. You could get fired if they find out you lied about yourself.
I'm just trying to protect myself, they will not find out it's a lie.
What makes you sure that they will not find out that you lied? You should just tell the truth so that you do not have to pretend to be someone you're not.