Introduction
On 15 September 2026, the Supreme Court dismissed approximately 271 appeals filed by the Union of India against retired servicemen who were awarded the disability pension in the matter of Union of India & Ors. v. Col. N.C. Isaac (Retd.) & Connected Matters (2026 INSC 993). This case relates to rules governing armed forces’ pensions, and it deserves to be analyzed in the context of disability rights framework, as it repeatedly refers to the determination of a cause, reliance on medical opinion, and the party that has to bear the burden of proving the case.
What the Court Decided
In all the cases, the Release Medical Board (RMB) had recorded that the disability in question was neither attributable to nor aggravated by service (NANA). However, the Armed Forces Tribunal and multiple High Courts held that disability pension is to be awarded to the retiree.
Normally, the employer has to prove that the retirement of the employee was not due to the service. In the absence of knowledge about the cause of a disease, it is to be assumed that it is attributable to the service. The Court concurred with the Union of India on two points, being, a Medical Board opinion deserves to be given due weight, and in the case a claim is made more than 15 years from the date of discharge, the claimant has to prove his case.
One of the Factors, But Not the Only One
According to the rules, a disability is service-connected if it is caused by or aggravated by service. In the 2008 Rules, Rule 11 states that aggravation is conceded if service quickens the onset of the condition or makes the course of the condition worse. Therefore, service need not be the only cause of the condition. Service needs to be a part of the cause of the condition.
In Ravinder Kumar Dhariwal v. Union of India (2021), the petitioner, who was a CRPF officer with obsessive-compulsive disorder and depression, faced departmental enquiry for misconduct. It was held that the petitioner needed to prove that his condition was one of the causes of his misconduct. The court said that requiring it to be the sole cause would lead to a situation where a lot of persons with mental disability will not be covered. One case deal with pensions and the other with discrimination, but both start from the same observation, that conditions usually do not have a single cause, and a test which demands a sole cause will exclude a lot of genuine claims.
Medical Opinions, Labels and Reasons
The Court said that the opinion of a Medical Board should not be replaced because another opinion is possible. The Court also said that while examining the opinion of the Board, the Tribunal should give a detailed analysis of reasons. The focus on reasons has history. In Dharamvir Singh (2013), a medical board gave no reasons for its opinion, and the court set aside the order. In Rajumon T.M. (2025), it was held that a denial of pension based on an unreasoned opinion of a Medical Board would be set aside.
Similar concerns arise in civil disability cases. In Om Rathod v. DGHS (2024), the Court noted that a disability board gave no reasons and relied on a percentage to deny disability. The Delhi High Court in Col. Balbir Singh (2025) noted that the onset of a disability at a peace station does not, by itself, justify denial of a disability pension. In all these cases, a number or a label has been relied upon without any reasons given by a person in a manner that is readable and challengeable.
Conclusion
N.C. Isaac is a judgment about pensions, but the way it is framed also addresses other aspects of disabilities. It treats disability, in general, as rarely having a single cause, therefore treating service as one of the causal factors rather than the only one. It also requires that medical opinions be made by those who have considered possible causes of the condition, and it shifts the obligation to those who control the records, to explain. It also provides that reasonable doubt should be interpreted in favor of the person who lives with the disability. In Balbir Singh, the Delhi High Court said, such support is “not an act of generosity”. It is a right, and N.C. Isaac‍‍‍ makes it clear that the Supreme Court is in agreement with that ‍‍‍view.