The most practical route is to separate proving your grandmother’s legal heirs from obtaining a particular state’s Legal Heir Certificate (LHC). Your father may be able to establish that he is the sole heir, but the correct procedure depends on the state where your grandmother died, the state where the property is situated, and the local rules governing LHC issuance.
One important point: a Legal Heir Certificate is evidence of the family relationship and claimed succession; it does not, by itself, conclusively determine ownership of the property. Equally, your father’s claim that he is the sole heir should be supported by the applicable succession law and family records, rather than inferred solely from the absence of siblings.
1. Easiest way to obtain the Legal Heir Certificate
Your father should first submit a formal application to the competent revenue authority in the state where your grandmother ordinarily resided before her death, enclosing her death certificate, proof of his relationship with her, available family records and an affidavit explaining that she left no other legal heirs.
However, the correct issuing authority depends on the applicable state rules. The fact that she died in State B does not, by itself, conclusively establish jurisdiction; her ordinary residence and the relevant state’s procedure must also be checked.
If the Tahsildar in State A insists on an NOC, ask for the specific rule, circular or written order requiring it. If the application is refused or kept pending without a valid reason, representation to the superior revenue authority, followed where appropriate by a writ petition, may be considered.
2. Is an inter-state NOC required?
There is no general, uniform rule requiring one state to issue an NOC to another state in every Legal Heir Certificate case. Whether such a document is required depends on the applicable administrative procedure.
Rather than pursuing an informal NOC indefinitely, obtain a written clarification from the Tahsildar identifying the legal basis for the requirement. That will help determine whether the requirement can be challenged or whether an alternative document or verification from State B will suffice.
3. Can the property be sold without the Legal Heir Certificate?
The absence of an LHC does not automatically mean that your father has no inherited title. If your grandmother was a co-owner and your father validly inherited her share as her sole heir, his rights arise under the applicable succession law, not merely from the certificate.
However, your father cannot convey more than the title he can legally establish. Until the grandmother’s share is satisfactorily documented, a purchaser or the registration authorities may raise objections. Your father may be able to transfer his own established share, but conveying the entire property requires a legally sufficient basis to establish and transfer the grandmother’s share as well.
My recommendation: Do not begin with a civil suit unless the administrative route has been properly tested or there is a genuine dispute over heirship. First obtain a written response from the Tahsildar and identify the applicable state procedure. If the only obstacle is an unsupported administrative demand, a targeted challenge may be more proportionate than immediately instituting a full civil suit. The exact route depends on the two states involved.