Judicial orders affecting existing rights are unsustainable if passed without impleading necessary parties.

The private respondent (Parinita Borah) filed a writ petition, WP(C) 4041/2019, claiming that despite being senior to the appellant (Pratima Chetia), her service as an Assistant Professor was not provincialized.

On 10.09.2021, a learned Single Judge allowed the petition, directing the provincialization of the private respondent and noting that any adverse consequences for existing incumbents should be addressed after a hearing.

Consequently, the state issued an order on 20.02.2025 withdrawing the appellant’s provincialization, which had been granted in 2015.

The appellant, who was never arrayed as a party respondent in the original writ proceeding, challenged the withdrawal in WP(C) 1200/2025.

That challenge was dismissed on the grounds that the foundational judgment of 10.09.2021 remained unassailed.

1. Whether an adjudication that potentially unsettles the existing provincialization of an employee can be legally sustained when the affected employee was not arrayed as a party respondent to the proceedings.

2. Whether the direction to provincialise the private respondent, which directly imperiled the appellant's vested rights, violated the principles of natural justice.

The court primarily applied the foundational principle of natural justice, specifically the rule of audi alteram partem, which mandates that no person shall be condemned unheard.

It relied on the doctrine of "Necessary Party," establishing that any person whose rights are likely to be affected by a judicial determination must be impleaded in the proceedings.

Furthermore, the court emphasized that the exercise of judicial review in service matters involving competing entitlements must adhere to procedural fairness under Articles 14 and 16 of the Constitution of India.

The Division Bench observed that the 10.09.2021 judgment was not merely declaratory but carried the explicit potential to divest the appellant of a benefit (provincialization) she had enjoyed since 2015.

The court reasoned that because the dispute involved "inter-se" seniority and competing claims to provincialization, the presence of all affected incumbents was mandatory for a conclusive determination.

By failing to implead the appellant, the writ petitioner (private respondent) obtained findings that directly prejudiced the appellant’s rights without affording her an opportunity to be heard.

The court held that this procedural infirmity struck at the "very root of procedural fairness," rendering the Single Judge's examination of the merits vitiated regardless of whether the eventual conclusion was substantively correct.

The matter was remanded to the learned Single Judge for fresh adjudication, with a direction that the appellant be impleaded as a party respondent and provided an effective opportunity to be heard.

The court ordered that the status quo regarding the service of both the appellant and the respondent be maintained until the final determination of the writ petition.

Writ Appeal No. 176/2025 was closed as withdrawn in light of these directions.

The court clarified that it expressed no opinion on the merits of the rival seniority claims.