Tractor insurer remains liable for accidents caused through an attached uninsured or unregistered trailer.

On 8 June 2014, Periyannan, aged approximately 35 years, was riding a TVS-50 bearing Registration No. TN-48-A-4072 from Melur towards Jadamangalam. Near Karuppar Koil, Konapampatti, a tractor bearing Registration No. TN-25-AC-8966, driven with an attached trailer loaded with straw, allegedly came in a rash and negligent manner and collided with his two-wheeler, causing multiple grievous injuries, including fractures to the right leg and thigh and injuries to the shoulder and knee.

He underwent treatment at Government Hospital, Namakkal, and at Ganga Hospital, Coimbatore, as an inpatient from 8 June to 20 June 2014.

The claimant filed MCOP No.334 of 2014 seeking compensation of Rs.15,00,000/-. The Motor Accident Claims Tribunal held that the accident resulted from the negligence of the tractor driver and awarded Rs.11,96,242/- with interest at 7.5% per annum and costs.

The insurer challenged the award, contending that the claimant was contributorily negligent, the tractor driver lacked a valid and effective driving licence, the trailer was neither registered nor insured, and the Tribunal had wrongly treated the claimant’s 52% medical disability as 100% functional loss of earning capacity.

1. Whether the accident was caused by the rash and negligent driving of the tractor driver, or whether contributory negligence should be attributed to the claimant?

2. Whether the insurer could avoid liability because the trailer was not separately registered or insured and the tractor driver did not possess a valid driving licence?

3. Whether the Tribunal was justified in applying the multiplier method and awarding Rs.11,01,600/- for loss of earnings on the basis of 100% functional disability, despite the Medical Board assessing 52% disability?

The appeal was considered under Section 173 of the Motor Vehicles Act, 1988, governing appeals against awards of the Motor Accident Claims Tribunal.

The Court applied the principle that liability for an accident caused during the operation of an insured tractor may extend to an attached trailer where the tractor was the effective cause of the accident; relying on The Royal Sundaram Alliance Insurance Company Ltd. v. Smt. Honnamma & Others, 2025 INSC 625, it held that separate insurance of the trailer is not decisive when the accident occurs while the tractor is pulling or operating it.

On compensation, the Court relied on Raj Kumar v. Ajay Kumar, 2010 INSC 703, which permits the multiplier method where permanent physical disability results in functional disability or loss of earning capacity.

It also accepted the principle in Sunil Kumar v. Ram Singh Gaud & Others, 2008 ACJ 9 (SC) concerning deduction towards personal expenses in computing loss of earnings.

A breach relating to driving without a valid licence ordinarily permits the insurer to avoid indemnification, but the Court maintained the direction requiring the insurer to pay the claimant first and recover the amount from the vehicle owner.

The Court preferred the claimant’s evidence over that of the tractor driver, RW1. RW1’s evidence was inconsistent with the insurer’s pleaded version regarding how the claimant allegedly lost control, and RW1 admitted that no complaint had been lodged against the claimant.

The Court therefore affirmed the Tribunal’s finding that the tractor driver was negligent and declined to impose contributory negligence on the claimant.

Although the trailer was not separately insured or registered and the driver lacked a valid licence, the accident occurred while the insured tractor was moving and pulling the trailer. Applying Honnamma, the Court held that the tractor was the operative cause of the accident and that the absence of separate trailer insurance did not exonerate the insurer.

On quantum, the Court accepted Rs.6,000/- as the claimant’s monthly notional income, the 1/10th deduction for personal expenses, and the multiplier of 17.

Given the claimant’s age, occupation as a coolie, multiple fractures, and inability to resume his hard physical work, the Court held that the Tribunal was justified in treating the assessed physical disability as resulting in complete functional loss of earning capacity and in applying the multiplier method rather than the percentage method.

It held that the claimant was not contributorily negligent, that the insurer could not be exonerated merely because the attached trailer was separately uninsured or unregistered, and that the compensation based on the multiplier method was justified.

The insurer remained liable to satisfy the award in the first instance, with liberty to recover the amount from the owner of the offending vehicle.

No order as to costs was made in the appeal.