Per I think... If this the truth of the 1st wedding has to come out from Devki... If comes through Radh than it will not have that profound effect.
At this point when Radh is all alone it will do more harm than good. The baddies will definitely make it ugly... So I rather Radh do not take that out and keep it sacred and holy... As Angake said that the reasons why Radh kept quite have not changed. but the location has changed and the impact of it on babuji may be less...
But than babuji will feel betrayed by all he trust and love... first of all Radh than Devki than his mom.... It could be really fatal on him.
The effect on Purohits also will be a sheer shock but once it wears out they will be too happy about it..
But with the truth coming out the story cannot go too far.. and that's the reason Devki is going on a pilgrimage...
But if at all Vish is able to push Radh out of CB and than Devki comes back from pilgrimage and sees all these havoc Vish and amma had created than only she will have the courage to to Shashtiji with the truth and help Radh.
Devki is the only one who can undermine amma and Vish and in front of her truthful ness Amma and Vish has no chance... She will be the one who will remember the picture,
She may remind Dev about the incident of Phool bangala that Radh was trying to tell him but amma slapped her quite.
She can tell Dev that during the Kshama Vrat Radh pleaded her but I stopped her..
She can remind Dev that During the Dandia night that was Nandu was trying to say when he told him that why are you marrying my did again that it was her who told Radh to keep quite..
And she could add how much Radh suffered for that and how much she was forced to keep quite and pushed Vish towards Dev but her Kanha alwasy saved her marriage..
I think It has to come from Devki ....