Now out of the survivors, it appears there are three of them now in your family to succeed to the estates of your father, i.e., you, your brother and one sister (the share of unmarried sister shall automatically devolve on her surviving legal heirs, i.e., you three), shall be entitled to 1/3rd share equally out of your father's intestate property.
You three can mutually agree for family partition and can get your share allocated as per your mutual agreement, draw a partition deed, get it registered and on the basis of the registered partition deed document you can apply for mutation of revenue records separately on individual's name with the revenue department of your property's jurisdiction.