1) section 4 of Indian easement act defines easement
2) ‘Easement’ defined. -An easement is a right which the owner or occupier of certain land possesses, as such, for the beneficial enjoyment of that land, to do and continue to do something, or to prevent and continue to prevent something being done, in or upon, or in respect of certain other land not his own,
3) Dominant and servient heritages and owners.--The land for the beneficial enjoyment of which the right exists is called the dominant heritage, and the owner or occupier thereof the dominant owner; the land on which the liability is imposed is called the servient heritage, and the owner or occupier thereof the servient owner.
A, as the owner of a certain house, has a right of way thither over his neighbour B’s land for purposes connected with the beneficial enjoyment of the house. This is an easement.
4) section 15 of Easement act
And where support from one person’s land or things affixed thereto, has been peaceably, received by another person’s land subjected to artificial pressure, or by things affixed thereto, as an easement, without interruption, and for twenty years,
And where a right of way or any other easement has been peaceably and openly enjoyed by any person claiming title thereto, as an easement and as of right, without interruption, and for twenty years,
The right, to such access and use of light or air, support, or other easement, shall be absolute.
Each of the said periods of twenty years shall be taken to be a period ending within two years next before the institution of the suit wherein the claim to which such period relates is contested.
5) since you have enjoyed right to use existing path for over 35 years you can benefit of right of passage under section 15 of easement act