1. The property does not qualify as ancestral property as it was divided through a deed of partition between your father and his brothers. It is the self acquired property of your father.
2. The property devolved on all the legal heirs of your father i.e his widow and all his children if he died without making a will.
3. You have carried out mutation of the names of all legal heirs with respect to this property.
4. All the legal heirs have an equal share in the property. Nobody can claim a share greater than the share of any other legal heir.
5. The property is not HUF. A deed of partition can be drawn up to amicably divide the property among the legal heirs of your father.
6. You do not require succession certificate.