The naan bread and yogurt sauce that come with it are not vegan so ask for the curry without (or give them to your fiance if he wants them, like I did!), all the other bits are though. You could probably ask them to swap the naan for another poppadom or bhaji but I was pretty full without doing that!
This curry is not spicy at all in my opinion, so even for those who don't like spicy food, I think you'll do OK with it.
They also have quite a few vegan side dishes, if you wanted to cobble something together. The allergen menu lists vegan items and can be found HERE. (I didn't link to the exact link as it's bound to change regularly!)
There's no vegan puds - but I was way too full for that anyway.
Have an awesome week everyone!