She has got punishment in her own way
Only getting physically beaten or tied is not punishment but punishment is of different kind
What she got after cheating her husband a husband who is not interested in her or not even treating her properly
Now again she lost her all sons
What is bigger punishment than it loosing your son is like loosing everything
And even whole family has lost something
Loosing any blood relative is very big thing it always give us pain
When a brother or son die in young then whole life we they have to live with memory and it haunt us always
And nandini was close to her brother
What mura right doing her goodness has paid her today
Ya her husband got killed and she was whipped and chained like dog but for a mother if her child is alive and happy then nothing matters to her
Remember how mura was happy to know about Chaya being alive and now her son also is alive
So she got what she deserved
She will now enjoy her children company she will see them living happily whole life
And avantika also paid for her deeds and what she deserved