What was your age when the settlement of Rs. 110,000 was made between your father and mother at the time of their divorce. Was it in writing. Whether you too joined in the said settlement, if it was in writing?
You clarified that the property is his self acquired property. Whether your father died intestate. Unless full facts are examined, you can not simply initiate legal action adding to lakhs of cases pending before Courts. Therefore, please approach a good and reliable Lawyer in your area, inform full details and get a proper advice and act accordingly in consultation with your well-wishers