If you are using this pathway more than 20 years then you can claim Easement by prescription. To claim relief on the strength of easement by way of prescription, it must be shown that the person claiming it has been using a defined pathway for the statutory period of 20 years as of right, peaceably, continuously, openly and without obstruction. When a plea of right of easement by way of prescription is raised, it is not necessary to go into the question of alternative ways.
In your case this is the only one pathway which you can use. So you can file a suit for declaring your right to use the pathway as easement by way of necessity. Easement by necessity arises on the severance of tenement and its origin cannot be postponed to a later date. An easement of necessity means an easement without which the property cannot be used at all. Mere convenience is not the test of an easement of necessity. A man cannot acquire a right of way as an easement of necessity, if he has got other means of access to his land, however, more inconvenient it may be than by passing over the land of neighbours.
But the court can provide only a way for your ingress and egress and not in a way having width of vehicular access. If you need to get the way having a width of 4 meters then you have to establish you had used the way at 4 meter width from the beginning.
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