Without way or path to access the property it would be meaningless. That is why law has provided for easement rights. An easement is a right to use another's property. It is a right, which the owner of a particular land enjoys over an adjacent property, which he does not possess. It is the right over a property belonging to someone else and not to the person claiming easement. In fact, whether he likes it or not, it is a burden he is forced to bear by grant, custom, or by prescription. An easement can be acquired by grant. The deed may be separate or the grant may be included in a deed relating to the dominant heritage. Prescription means getting a right by continuous assertion of the right, which has been in use for a long period of time. Easement by virtue of custom is a legal right acquired by the power of law through continuous use of a land over a long period of time. Therefore, the right of way continues to exist by grant, prescription or by virtue of custom.
One of two or more co-owners of immovable property may, as such, with or without the consent of the other or others, acquire an easement for the beneficial enjoyment of such property.
Therefore your mother is entitled for easement rights under section 13 of the Indian Easements Act 1882 and also can file a suit claiming this relief as well as an application for injunction on the same lines under section 35 of the same Act.