Mothers right in sons ancestral property when she is not alive

3 years ago

Hi, my grandfather has 10 acres of land, my father along with his 4 brothers got 2 Acres of land each during their partition.
My father expired in 2010 intestate and the legal heir certificate of my father contains the 5 names they are my mother, 3 Sons (Me and my brothers) and my grandmother (mother of my father).
In 2016 my grandmother also expired and we have not taken any NOC from her if she has right to share of my father assets.
Now we wanted to get the land partitioned in the name of my mother, me and my 2 brothers.
NOW CAN THE 4 BROTHERS OF MY FATHER CLAIM THE SHARE IN MY FATHER 2 ACRES LAND saying my grandmother is 1/5th owner of the property as per the legal heir certificate and they in turn will have right in their mothers share of property.
Is this claim by my unlces (brothers of my father) legal? Can they object when we 4 (my mother, me and my brothers) get the property partitioned between us?
When their share of land goes to their sons and wife, why not my father share come to us? Does the name of my grandmother in my father legal heir certificate cause any difference even if she is not alive?