Your issue relates to termination/extinguishment of an easementary right, which is governed by the Indian Easements Act, 1882.
Since the easement is expressly granted in your title deed, it cannot be removed casually; it must be extinguished in one of the legally recognised ways.
1. Non-use for long period (most relevant to your case)
Under Section 47 of the Easements Act:
• An easement can be extinguished if it has not been enjoyed for a continuous period of 20 years.
From your facts:
• The pathway has not been used for more than 30 years.
This is a strong ground to argue that the easement stands extinguished by non-user, provided you can prove:
• complete non-use (not even occasional use), and
• continuous period of 20+ years.
Evidence may include:
• boundary walls/obstructions existing for decades,
• witness statements (neighbours),
• photographs, revenue records, etc.
2. Express release (not possible here)
Another method is:
• the dominant owner (beneficiary of easement) releases the right by a registered deed.
Since the opposite parties are unwilling, this route is not available.
3. Unity of ownership (not applicable unless ownership merged)
If both dominant and servient heritage come under one ownership, easement extinguishes. This does not apply in your case.
4. Permanent change making easement useless
If the property has changed in such a way that the easement cannot be used or has become unnecessary, it may extinguish. This is fact-specific but secondary compared to non-use.
5. Practical legal remedy (what you should do)
Since the other side is not cooperating, you will need to approach the civil court:
• File a civil suit for declaration that the easementary right stands extinguished, and
• seek consequential relief of permanent injunction restraining them from claiming or using the pathway.
The court will examine:
• your title deed,
• existence of the easement,
• evidence of non-use for 20+ years.
If satisfied, the court can declare that the easement is no longer enforceable.
6. Important caution
• Mere non-use is not always automatically accepted — strict proof is required.
• If the other side shows even occasional use, your claim may fail.
• Since the easement is recorded in the title deed, mutation/records will not change unless you obtain a court decree.
7. Limitation / defensive strategy
Even if you do not immediately file a suit:
• If they attempt to assert the right later, you can defend on extinguishment by non-user.
However, proactive declaration is advisable to clear title.
Summary
An easement granted in a title deed can be terminated under law if it has not been used for a continuous period of 20 years. Since you state that the pathway has not been used for over 30 years, you have a strong legal ground to seek a declaration from a civil court that the easement stands extinguished, along with an injunction against its future use.