Chemical Leaks and Industrial Accidents: Liability and Compensation

When a chemical leaks, a tank bursts or a factory catches fire and people outside the gate are hurt, the company running the hazardous activity is liable for the harm whether or not it was careless. Indian law has applied absolute liability to hazardous industries since the Oleum gas case in 1987, and section 17 of the NGT Act builds no-fault liability into accident claims. Victims can get quick interim relief under the Public Liability Insurance Act 1991, claim full compensation before the National Green Tribunal within 5 years, and pursue criminal action separately.

This is our main guide on industrial accidents. It covers who is liable, the different remedies and how they fit together, what compensation covers, what the authorities must do, and what a company should do in the days after an accident. It is written for victims and their families, for residents and RWAs, and for operators.

For narrower questions, see our guides on the rights of residents after a factory gas leak, oil spill compensation and ash pond breaches.

The essentials

Who is liable when a chemical leaks or a factory explodes?

The enterprise carrying on the hazardous activity. In M.C. Mehta v Union of India (the Oleum gas case, 1987), the Supreme Court held that an enterprise engaged in a hazardous or inherently dangerous activity owes an absolute duty to the community to ensure no harm results, and that if harm results it is absolutely liable to compensate everyone affected. The usual defences do not apply: it is no answer that the leak was an unforeseeable accident or the act of a third party.

The NGT Act carries this into its own procedure. Section 17 says that where a claim arises from an accident, the tribunal applies the principle of no fault. Section 20 directs it to apply the polluter pays principle. So the victim does not need to prove how the valve failed or who forgot to check the pressure gauge. What must be shown is the accident, the activity it came from, and the harm.

Liability can reach more than one party. The occupier of the factory, the owner of the premises, a contractor who was handling the chemical, and a transporter carrying it can all be respondents, depending on the facts. In practice the company running the unit is the main target because it holds the licences, the insurance and the money.

What remedies does a victim have, and where do they go?

Victims often assume they must choose one route. They do not. These remedies are separate and can run together.

Any amount received as interim relief is usually adjusted against the final compensation, so taking relief early does not reduce what you can claim later.

Which laws apply to chemical accidents?

What does absolute liability mean for a victim in practice?

It shifts the fight from who was careless to how much is owed. Without it, a victim would have to prove negligence against a company that holds all the records, controls the site after the accident and can afford engineers to explain the failure away. With it, the company pays for harm caused by its hazardous activity, full stop. Arguments about a sudden pipe failure or a contractor's mistake affect who the company can recover from, not whether the victim is paid.

The Supreme Court in the Oleum gas case also said compensation must be related to the magnitude and capacity of the enterprise, so that it works as a deterrent. A large chemical company cannot pay a token sum and call it settled. The NGT has applied the same idea when fixing interim deposits after accidents, linking them to the company's size as well as the visible harm.

Absolute liability does not mean every claim succeeds. You still need to show that the harm came from the accident. A cough that started years earlier, a crop failure in a drought year, or a crack in a house that is decades old will be questioned. Documentation made at the time is what answers those questions.

What should victims do after a chemical accident?

The first two weeks decide how strong a compensation claim will be. This order works for individuals, families and colonies.

Do not sign any settlement or receipt offered by the company in the first days without reading it carefully. Some ex gratia payment forms include a line saying the amount is in full and final settlement.

What can compensation cover after an industrial accident?

Section 15 is wide. It covers relief and compensation to victims, restitution of property damaged, and restitution of the environment. In practice that means death, injury and long-term disability, medical expenses past and future, loss of income and earning capacity, damage to houses and goods, loss of livestock and crops, costs of evacuation and temporary shelter, and the cost of cleaning up soil and water.

Damage to the environment itself is claimed alongside personal losses. Where a chemical has entered a pond, a drain or the groundwater, the tribunal can direct the company to pay for remediation and order a separate sum as environmental compensation, which usually goes to the State Board or a fund for restoration. Our guide on who pays to clean up contaminated industrial land explains the remediation side.

Amounts are worked out from evidence. For death and injury, tribunals look at age, income and dependants, much as accident claims are assessed elsewhere. For property, valuation reports and bills. For crops, revenue records and market rates. Our page on claiming compensation for pollution damage sets out how we prepare these claims.

How does the NGT handle accident cases?

After serious accidents, the NGT has often acted on its own on the basis of news reports, issuing notice to the company and the authorities and forming a committee to find out what happened. Victims can still file their own application, or apply to join a case already started, so that their losses are on record.

The usual pattern is a fact-finding committee of the State Board, CPCB, the District Magistrate and sometimes technical experts, with a direction to the company to deposit an interim amount with the DM, linked to the scale of the accident and the company's financial capacity. The committee reports on the cause, the damage and the steps needed, and parties can file objections to its findings.

Final orders typically fix or confirm compensation, direct the district administration to identify victims and disburse amounts, require remediation within a timeline and order environmental compensation. Where the tribunal finds safety failures, it may direct a safety audit before the unit restarts. If the company does not pay, an execution application follows; our guide on enforcing NGT orders covers that step.

Can victims get money before the case is decided?

Yes, through two channels. The Collector can order relief under the PLI Act, which is designed to be quick and is paid from the owner's insurance. And the NGT can direct the company to deposit an interim sum at the first hearing, before any final finding, precisely because the principle is no-fault and people need treatment and shelter now.

Ask for interim relief specifically. Applications that only ask for final compensation sometimes wait months for a deposit order that could have been asked for on day one. Our guide on asking the NGT for interim relief explains how to frame that request.

Interim money is not the end of the matter. The final award can be higher, and the interim amount is set off against it. Families sometimes stop pursuing the case after the first payment and lose the larger sum they were entitled to.

Are workers inside the factory treated differently from residents outside?

Partly. Workers injured or killed in an accident at work have their own statutory compensation under labour and social security law, through the employer and the insurance schemes that cover them. Those claims go to the labour authorities, not the NGT. The labour law framework has been changing with the new labour codes, so check which provisions apply on the date of the accident.

Residents, passers-by, nearby shopkeepers and farmers are outsiders to the employment relationship, and their claims rest on absolute liability, the PLI Act and the NGT Act. In a large accident both groups exist side by side, and the tribunal's orders often deal with victims outside the factory while leaving worker claims to their own forum.

Contract workers fall through the gaps most often. They may be missing from the company's rolls, and the contractor may vanish after the accident. Keep proof of work, such as gate passes, wage slips, photos at the site or statements of co-workers, because that proof decides which route is open.

What must the authorities do after a chemical accident?

The occupier of a major accident hazard unit must report the accident to the authorities and take steps under its on-site emergency plan. The district administration activates the off-site emergency plan, the district crisis group under the Chemical Accidents Rules coordinates the response, and the State Board inspects for environmental damage. The factory inspectorate examines safety failures.

If those plans were never prepared, never rehearsed or never shared with the public, that failure is itself a ground in an NGT application. Residents near large chemical units are often surprised to learn that an off-site emergency plan is supposed to exist for their area. Ask for it by RTI.

In accident applications that Advocate B.K. Singh has handled, the authorities' own records, especially the last inspection before the accident and any earlier complaints, have often mattered as much as the victims' evidence. They show whether warnings were ignored, which affects the tribunal's view of compensation and of the regulators' role.

We are the company. What should we do after an accident?

Treat victims first and lawyers second. Arrange medical care, notify the authorities as the rules require, cooperate with the district crisis group, and secure the site so evidence is preserved, not cleaned away. Tribunals look closely at conduct in the first days, and a company that hid information or delayed reporting usually pays for it in the final figure.

Notify your insurer under the PLI Act policy at once and support relief payments rather than resisting them. Keep full records of the hazard analysis, safety reports, emergency plans, maintenance logs and training. If the matter reaches the NGT, those documents are your answer to allegations of systemic failure, even though they will not avoid liability itself.

Expect directions on a safety audit, conditions for restarting and possibly environmental compensation. Our page on responding to environmental compensation demands explains how amounts can be examined and, where they are excessive, challenged.

Papers to collect after an industrial accident

Related guides

If you live near a coal or thermal plant, read our guide on thermal power and fly ash pollution. If the accident involved waste being dumped or burned, see reporting hazardous waste dumping. Watch the time limits in our guide on NGT deadlines.