Ref. to partition case and related process. (hindu undevided family property matter)

We are 2 bro and 2 sis with 1 mother, father is expired without making a will. now my elder bro is giving to much trouble to me and my mother., As there were no wlll prepare from father all are equally holder of the property. my 2 sis are with me and my mother too. we have semi-tenaments(ground floor and 1st floor) current he(elder) residing ground floor with his family and myself 1st floor with my family, both sis are married. i heard about partition claiming but worried about the time period and more worried the more trouble from my elder brother. can some one guide me the best way to tackle. my mother is 70+, dont want to wait longer period as i heard family suite takes longer. Plus point is my 2 sis and my mother is supportive to me. my elder bro is giving Trouble likes..not paying electricity bill, not paying house tax, not allowing me to have my own saperate meter, or water connection. not pullling water to the top floor...etc plus ready to fight with even a small matter or matter not affect at all.