1. As narrated by you, there are 8 siblings and parents are no more.
2. It's not correct that you alone have to shoulder the responsibility of the supervision & maintenance of the land whereas others without any active participation are also treated on par with you in respect of entitlement of equal share in the property.
3. All the siblings can enter into a Family Settlement Deed wherein the details of total land holding, court cases in respect of certain lands, legal expenses, maintenance, cost for reconstruction of old house, etc.can be detailed and the money required for the above has to be quantified and the total cost has to be equally divided and all the siblings have to undertake to bear the cost. In case anyone declines to pay for the expenses, his/her share shall be proportionately reduced to the extent of his/her contribution which has to be agreed by the concerned person by signing the Family Settlement Deed.
4. Legally, unless & until a legal heir/heirs execute a Release Deed relinquishing his/her/their share/S in favour of other legal heirs it is not legally possible to decline the rightful ownership of the co-owner/S in the property.
5.