Dispute in claiming the property

Dear Sir, Some could please respond to my question. I am elder son of my family and after to me i have 3 younger brother's so we are four in our family. My father have house which is in his name and it self earned property and i am recently got married and we i have moved out from my family with in the month after my marriage from my home due to some internal issue in between father and me and now i am staying with my wife and new born baby separately. I father always see me like a enemy and always ignore me in many thing and he also give some extra support to my 3 younger brothers when comparing to me. My question is my father have right to declare his property after him and transfer it to my 3 brothers by ignoring me since i already i told he always treat me different from other's(brother's). Do law permits my father to make a will like this on his own that this property belongs only to my 3 brothers after him by ignoring the family elder son and if any such thing happen do i have right to fight to get a equal share from the property to make it instead of 1/3 to 1/4 after him. My father got my grant father job after his death and through that he brought this property. Please do needful.