My mother's sister and her son came home to discuss about partition. It was not a calm discussion instead it was shouting and conflicts. Her son was shouting from the beginning. We have called police to help in reducing the conflict. No case was filed as my grandmother don't want them to be arrested. Once the police left, she and her son charged against all of us and abused my mother and me. My mother is a widow and he said inappropriate words about her and me. I want to file a defamation case. Please suggest.