I should know my rights or cliams on my Mother's property

HI, We are four brothers and no sisters. We are settled in chennai. two brothers are living in place and two brothers are living in another house which is away. One property is in the name of my father, who is passed away in 2016. and one house property in the name of my mother, where i live. My mother has showing lot of partiality on my family, especially with my wife, bcos, she is from a poor background.All property has earned by my father which is hard earned money and my mother also worked. But she didnt spend single penny on our education, marriage, or anything. But now she is saying that she can do anything and nobody should question her. if question her, she asks to leave out . She is not disturbing other brothers and she is target and cornering only myself and my wife. In this case, can i have rights or can i claim my share (my mother's property). i have a daughter who is 7 years old and one son who is 1 year old. I want my share. What should i do in this case. Kindly suggest.