Eligibility of share in father's job acquired by elder brother after his death

Hello my father died some 24 years ago serving in TATA STEEL WEST BOKARO. we were 4 brothers and two sisters. my mother died soon. elder brother acquired my father's job. but soon after 5-6 years he isolated himself from us. he didn't spent money on 3 brothers and two sisters education health and upbringing. consequently the two brother remain unemployed the third one joined garage and worked as mechanic. the younger one being too good in study secured 91.5% marks in cbse x, kept by elder one but financed by the other brothers.the elder bro even refused for the younger brother education. the only thing done by him is marriage of two sisters. we still use to live in kachcha house and he is enjoying a luxurious life with AC four wheeler and every other stuff. so my question here is that do we have (3 brothers) any kind of share in our father's job acquired by him or has he got the job neglecting us and buying properties in his wife's name only. my father worked there for more than 10 years.