New partition suit after selling to us

2 years ago

1. My grandmother and her 4 sisters each got 6 acres of land through partition suit of their father's share.
2. My grandmother registered the land on my father's name.
3. One of my grandmother's sister died before the partition suit, so her 3 sons got equal share(2 acres) of her mother's 6 acres.
4. Those 3 son's sold their share without the consent of their children to my mother(since we verified that property devolved from mother can be sold without children's consent), so now my father has 6 acres and my mother has 6 acres.
5. One of my grandmother's sister son filed a partition suit again for separate possession as the land was not divided yet. So technically my father's name and mother's name should be in the new prelimiary decree as my mother bought before this new suit was filed, but instead the 3 son's who sold to us were been added to the preliminary decree along with their children also.
6.Can we file an appeal on that preliminary decree to remove those 3 son's name and their children's name as those 3 son's sold to my mother?

Response is highly appreciated.

Thanks in advance