1) you should file a suit and claim easmentary right of necessity from the landowner to acesss your land

2) rely upon your sale deed which shows road sketch to your land

3) section 13 of the Indian Easements Act deals with easement of necessity 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. It can be claimed only when there is absolute necessity for it, i.e. when the property cannot be used at all without the easement and not merely where it is necessary for its reasonable, or more convenient enjoyment. A man cannot acquire a right of way as an easement of necessity, if he has any other means of access to his land however more inconvenient it may be than be passing over his neighbours.

4) you can claim easmentary right of necessity as there is no other way to reach your house

5) under section 35 of easement act you can obtain permanent injunction restraining your neighbour from obstructing your right of passage . pending hearing and final disposal of suit you can claim interim reliefs .

Try to find out if the road earmarked in your sale deed is government road or not.

if yes then encroachment can be removed to make it a public road again.

However such road is a private road then you can do nothing except to buy adjacent plots of land to make a road out of it.

If original road was a public thoroughfare then you can file writ petition agaisnt the town planning authority to turn it into public road again.

Approval for concerned authorities is essential for constructing the building

You may have to look for alternative modes for approach road to fulfill the conditions necessary for approval of construction plan.

Even the court canot interfere in the decision by the Town planning authority if there is no provision to sanction approval without fulfilling or complying the necessary procedure/rules meant for this purpose.

It is surprising that how could you purchase the property without verifying the details or availability of essentials

namely access road or easements.

You may consult a local lawyer with the property documents and th correspondences you had with the town planning authority and get a spot advise.