Composite negligence permits full recovery from the insured vehicle despite an unidentified contributing vehicle.

On 6 July 2010, Nirmal Talukdar was travelling as a pillion rider on motorcycle No. AS-01-AC-7454, driven by Partha Pratim Talukdar. Near SBI Beltola Branch, the motorcycle attempted to overtake an unknown motorcycle; after the rider of the insured motorcycle applied the brakes, the unknown motorcycle struck it from behind. Nirmal sustained multiple serious injuries, including fractures involving the frontal bone, orbital roofs and facial structures, and underwent prolonged treatment at GNRC Hospital and elsewhere.

An FIR was registered describing the offending vehicle as unknown. Nirmal filed a claim petition under Section 166 of the Motor Vehicles Act, 1988. The driver and owner of motorcycle No. AS-01-AC-7454 proceeded ex parte, while National Insurance Co. Ltd. contested liability. The Motor Accident Claims Tribunal awarded ₹6,29,000 with interest at 6% per annum, fastening liability on the Insurance Company. The Insurance Company appealed against liability and quantum in MAC Appeal No. 336/2017, while the claimant appealed for enhancement in MAC Appeal No. 15/2017. During the pendency of the appeals, Nirmal died and his legal heirs were substituted.

Whether the Tribunal was justified in fastening liability on the insurer of motorcycle No. AS-01-AC-7454 when the accident also involved an unidentified motorcycle and was alleged to be a hit-and-run accident?

Whether the accident resulted from composite negligence of the drivers of both motorcycles, and whether the claimant could recover the entire compensation from the insured vehicle’s owner and insurer?

Whether the medical bills and treatment expenses claimed by the claimant were connected with the injuries sustained in the accident?

Whether the Tribunal correctly assessed the compensation at ₹6,29,000 and the claimant’s monthly income at ₹5,000?

Whether the interest awarded by the Tribunal at 6% per annum required enhancement?

The Court applied Section 166 of the Motor Vehicles Act, 1988, governing claims for compensation arising from motor-vehicle accidents.

It relied on the doctrine of composite negligence, under which, where the negligence of two or more wrongdoers causes injury, each wrongdoer is jointly and severally liable for the entire damages and the injured claimant may proceed against any one or more of them; this principle was drawn from T.O. Anthony v. Karvarnan, (2008) 3 SCC 748.

The Court distinguished composite negligence from contributory negligence, where the injured person’s own negligence reduces the compensation.

It also relied on Narendra Singh v. Nishant Sharma, (2015) 14 SCC 353, and held that interest at 9% per annum was appropriate on the compensation awarded.

The Court applied the principle that motor accident claims are determined on the basis of preponderance of probabilities rather than proof beyond reasonable doubt.

The Court held that the FIR’s reference to an unknown motorcycle did not conclusively establish that the insured motorcycle’s driver was free from negligence, particularly because the FIR was not shown to be based on an eyewitness account.

Nirmal’s uncontroverted testimony established that the insured motorcycle attempted to overtake another vehicle and that its rider applied the brakes, contributing to the collision; the Insurance Company neither effectively challenged this evidence in cross-examination nor produced contrary evidence.

Applying the rule in T.O. Anthony, the Court characterised the accident as one involving composite negligence by both motorcycle drivers. Consequently, the claimant was entitled to recover the entire compensation from the insured vehicle’s owner and insurer, notwithstanding the involvement of the unidentified motorcycle.

The Court further found that the medical records showed extensive facial and orbital injuries directly connected with the accident, and therefore upheld the medical expenses awarded by the Tribunal.

It declined to enhance the loss-of-income award because the salary certificate indicating monthly earnings of ₹6,000 was issued by an unexamined person and reflected temporary employment; the Tribunal’s assessment of ₹5,000 per month was therefore reasonable.

However, the Court considered 6% interest inadequate and enhanced it to 9% per annum.

The award of ₹6,29,000 was affirmed, and no enhancement of the principal compensation was granted. However, interest was enhanced from 6% to 9% per annum from the date of filing of the claim petition until realisation.

MAC Appeal No. 15/2017 was partly allowed, while MAC Appeal No. 336/2017 filed by the Insurance Company was dismissed.

The Insurance Company was directed to deposit the outstanding amount within six weeks, after which it was to be disbursed to Nirmal Talukdar’s substituted legal heirs.