heirs of daughters rights

As far as Hindu Succession act is concerned daughters of your aunt have full right to claim share in joint property, if till 2014 no partition has taken place - this is due to the 2005 amendment of sec 6 of Hindu Succession act - had your property been partitioned before 20 dec 2004 through a registered deed than their claim would have no legal validity, but absence of any such situation their right is valid

i want to know about how to file a partition suit. my father died one year back. my mother is there,and we are 3 daughters and 2 son's of my father , as my father's legal heirs. it's all my father's hard earned property, which my mother my younger sister are trying to make it their own- is it possible for them to make it in their name, now firstly they are trying to make it  into my mother's name and then my mother will transfer into younger sister's name that's their plan. Out of my 2 brother's one brother is dead , leaving back his wife and 3 small children.

Will all of us have equal rights in my father's property or will my mother and younger sister decieve us.?

what to do to go for a partition ??

please this all and also please tell me how to file a partition suit and what are the procedures and what all documents should be there to suit partition ???