I think the person who got married to tej could b Chanda,
I have a strong feeling , when someone knocked on Mukta 's door that
Is definitely Tapasya, then probably she told Mukta that she
Need not to sacrifies her life and she Has a better plan,Tapasya might told
Mukata that now she will bring the happiness in iccha's life,then she will
Show Chanda and tell the whole story,
And I am sure the cvs will show that Tapasya was always watching Mukta,
Then she came to know her plan to marry that tej and thats why she shows up to help her ,
Chanda marries tej but since Tapasya need to enter bundela house she takes Chanda's place and enters,
At the end rathod and tappu will b together !!!