Mirch yaar i've read this thing quite a few times. The thing which i'm confused about is when people talk about the oath thing. I'm envisioning it as something which may count as official when they make you say "I do". But as Sajal pointed out, it may not be a big deal.
The oath is about the information in the forms you are submitting being true. It is not the oath about that you will surely marry that person or you take oath that you are saying I do.