I know that she will be devastated, but the way they have created her character, she will survive. Once she finds out, she'll hate Jagya and he might come out of his dillusion and recognizes what he has lost.
It would be amazing to see Anandi and Gauri working together to stop child marriages, but that I think would be wishful thinking.
The side thing of this triangle is that Dadisa can now say that she was right in not wanting him to go to mumbai