Women rights in ancestral & self owned father property

Dear Concern, 

My father having agri land of 30 acres in DIST. NAGPUR, MAHARASHTRA.

My father having ancestral land of 10 acres and he had purchase 20 acres from my uncles in 1965.(10 acres getting from my 

grand father & 20 acres SELF PURCHASE from Uncle)

Now, My father is expired in 1980 and mother expired in 2000.

We are 2 sisters & 1 brother.

1st is my Brother(age 65)
2nd my sister (married/age 55) and
3rd me (married/age 50).

After my mother death in 2000, we uploaded all 3 names at same time (Me, my elder sister & elder brother) on land 7/12 in 

2000. Till 2000, 7/12 carried my father name only.

Now, My brother is not ready to give share/ partition. 

Now, as per new SC judgement on Ancestral property 2005 has women not having equal share in Ancestral property.

My question is :-

1. SC judgement on Ancestral property - 2005 is apply for above condition. (As Name uploaded on 7/12 in 2000, before SC 2005 

law)

2. How much share, i will gate in above condition.(My father getting 10 acres from grand father & self purchase 20 acres by 

father)

3. If we go for court partition, how much time required for the same ??

Thanks in advance for your Imporatant suggestion's....