How long will this curry stay fresh?

[Nokidsnoproblem]

Hello, I am having a few friends over tomorrow and I am cooking a thali for them. One of the curries I want to make is this:

agirlcalledjack.com/2013/11/03/banana-chickpea-and-tea-curry-trust-me-on-this-one-its-amazing/

If I make it tonight, without the youghart, will it last until tomorrow night? Or will the banana go bad?

I think it'll be absolutely fine. Even better as curries and stews usually are the next day.
Maybe cook for 10-12 mins if your going to be reheating the next day and add the yoghurt at the need as the recipe suggests. That's what I'd do anyway.

How ripe are the bananas?