Mr. Hajare has given valuable advice.Kindly follow it.
If the deceased is Hindu, who has left no WILL and out of Class 1 relations
{Class I relations: Son/Daughter, Widow, Mother, Son/Daughter of a pre-deceased son (per-deceased means “already Dead”),Son/Daughter of a pre-deceased Daughter, Widow of a pre-deceased son, Son/Daughter of a pre-deceased son of a pre-deceased son (3 levels),Widow of a pre-deceased son of a predeceased son}
the only surviving relatives are Mother and widow of deceased, they can stake their claim for division of all estate of the deceased to be divided equally amongst them.