Ancestral Property Or Self Acquired After Family Partition

My great grandfather (A) died without a will, my grand father B and his elder brother C enjoyed the property jointly in HUF later they too died without a will. In 2005 a family partition settlement was executed among my father&his brother ( sons of B) and his cousins ( sons and daughters of C). I was born in 1990 and my brother in 1988 do we have the right to father's acquired family property by birthright as partition was done in 2005 ? My father is planing to sell a portion of property without our consent and other portion as a gift deed to my mother. He says it's a self acquired property after partition and doesn't need consent pls clarify. I am Hindu. He has already registered a few acres of land in 2024 as a gift deed on my mother's name without our consent.