Can sisters claim share from a disputed 7 acre expired leased property which is 70-80 years old ?

CASE My question is can my mother and her sisters claim their share from a disputed 7 acre prime property land leased in Saharanpur Uttar Pradesh. Original lease was done by maternal grandfather. ( NANA ) in 1930-40s but he died suddenly due to illness in 60s before he could buy this property and could settle the issues with the land. The leased expired but the original owner also died. SO the property remained with children of my maternal grandfather. There were 3 brothers + 4 sisters . Sisters were married of in 70s and the land was occupied by 3 brothers. 2 claimant parties came with some documents stating the lease was transferred to them but there were no clear documents to support that and they also didn’t have money to register the property on their names . So the battle for possession continued for many years and many new claimants came. The battle is stil continuing. Somehow the other two parties have established their claim but they don’t want to give much money for vacating the property. Now only 2 brothers are holding on to this 7 acre property with 30 percent build up area. Rest is Trees and plantation in prime location in Saharanpur Uttar Pradesh. Market value is 60 crores. My uncles should get one third that is 20 crores . But the other 2 claimants don’t want to give this much. Frist brother wants to sell but third one does not want to sell but keep it with himself. Second brother sold his share to third brother and left. So there is lot of confusion. So now 2 brothers are holding onto this property but they don’t want to share a penny or piece of land with sisters. What is the position of sister here.( I am son of the eldest surviving sister ) How can they get into this and claim their share. Are there any laws to support it. All the paperwork has been done on the name of brothers only. Sisters were deliberately kept out. The case and property is stuck with no settlement happening.