Do sisters get share in father's and grandfather's property even after their marriage before 2003

The daughters are entitled to a share in the asncestral property.

If your grandfather's property is self acquired and not an ancestral property in your father's hands then you cannot claim any share in  it as a right. 

If  GF dies intestate then his children and wife gets equal share if it is self acquired ,if father  property is self acquired chidrens cannot claim any share as birth right.

The daughters are entitled to a share in ancestral property. If your grandfather's property is his own and not ancestral then your father's share will be treated as his own and hence you cannot claim any share in it.

 

Yes, daughter(s) of Hindu father / ancester have equal right in the intestate properties. 

Yes, daughters are eligible in the property even after marriage held before 2013