Right of property of hindu women

I am  (HINDU) living in New Delhi a married women. I have a small family i.e. Husband and only one single Daughter (Minor) Madam, We are two childern's of my father one son i.e. brother (elder) and myself daughter(younger). My father was retired from Govt. service and died on 2011 without any will.. In whole life my father was purchased all property in the name of my mother to save property tax etc.., I was very close to my father he was always told me in front of all family members/relative that he give me equal share in his property. Now after the sudden death of my father in August, 2011 my mother and brother gave me so much stress totally deny to give me any share/part of property. Please advice me can being a Hindu i have right/claim to my share from my mother. It is also submitted for your information that my mother is Housewife and my brother is unemployed all property was purchased with the money of my father. Waiting for your reply.