Family Property Distribution after father death.

Sir , My family consists of 5-members i.e Father(A-Died,2015), Mother(B-Still alive),Me(C-Married,2018),Younger Sister(D-Married-2013),Younger Brother(E-Still Unmarried & Jobless). Father(A) was govt.servant and mother(B) is getting pension since 2016 and father retirement money also in her account only and house rents also be credited into her account only. Now the problem is : I (C) am earning money since 2008 by doing job in IT companies. And every month I used to give 90% my salary in my home i.e to parents till 2018 by cash or cheque. After marriage I got separated and living separately and used to bare some of the expenses of my mother and house. But brother doesn't earns money ,simply sits at home and mother is bearing his expenses as he is taking care of her. And since after death of my father he is started restricting me to come to my home and isolating me in family decisions and not allowing me to visit my father home town where my father properties exist and taking control of all my father property. Mother's support also there to brother(E). I requested my mother to distribute the property or declare the vilnama. But they are refusing to distribute and she wants to give all the property to Sister and Brother . And saying you have job and earning money why do you need property , purchase it by your own. Please let me know how to proceed. As I have threat from my brother and family.