The Public Liability Insurance Act, 1991 (PLIA), is a landmark social welfare legislation in India, enacted with the primary objective of providing immediate and mandatory relief to victims of accidents involving hazardous substances. The core principle of the Act is to ensure that victims receive prompt compensation without having to prove fault, operating on the doctrine of 'absolute liability' or 'no-fault liability'. Crucially, this relief is 'in addition to any other right to claim compensation' that the victims may have under other laws, such as tort law or the Workmen's Compensation Act.

Object and Key Features of PLIA, 1991:

1. Absolute Liability: The Act imposes absolute liability on the owner (a person who has control over a hazardous substance) for any death, injury, or damage to property resulting from an accident involving hazardous substances. This means the owner is liable irrespective of any fault, negligence, or even if all reasonable precautions were taken. This principle removes the burden of proof from the victims, ensuring quicker access to relief.

2. Mandatory Insurance: To ensure that funds are readily available for compensation, the Act makes it mandatory for every owner handling hazardous substances to take out a public liability insurance policy. This insurance covers the owner's liability to provide immediate relief to victims.

3. Environmental Relief Fund: The Act also provides for the establishment of an Environmental Relief Fund (ERF). If an owner is unable to pay compensation or if the insurance coverage is insufficient, the ERF steps in to provide the necessary relief. Owners are required to contribute to this fund.

4. Immediate Relief: The Act emphasizes providing immediate interim relief to victims. This is a critical aspect, as victims of industrial accidents often face immediate financial burdens due to medical expenses or loss of livelihood.

5. Scope of Coverage: The Act covers death or injury to any person (other than workmen covered under the Workmen's Compensation Act, unless they opt for PLIA relief) or damage to any property, arising from an accident involving hazardous substances.

6. Supplementary Nature: The phrase 'in addition to any other right to claim compensation' is vital. It means that the relief provided under PLIA is not exhaustive. Victims can still pursue claims for higher compensation through civil suits under tort law (e.g., for negligence) or other relevant statutes. The PLIA provides a minimum, quick-fix compensation, while other legal avenues allow for a more comprehensive assessment of damages.

Case Law and Jurisprudential Basis:

The jurisprudential foundation for the PLIA can be traced back to the landmark Supreme Court judgment in M.C. Mehta v. Union of India (Oleum Gas Leak Case, 1986). While this case predates the PLIA, it laid down the principle of 'absolute liability' in India for enterprises engaged in hazardous or inherently dangerous activities. The Supreme Court held that such an enterprise is strictly and absolutely liable to compensate all those who are affected by the accident, and that the enterprise cannot plead any exceptions (like 'Act of God' or 'third-party intervention') that might be available under the strict liability rule (Rylands v. Fletcher).

The Bhopal Gas Tragedy (1984), which caused immense loss of life and suffering, further highlighted the urgent need for a statutory mechanism to provide prompt relief to victims of industrial disasters involving hazardous substances. The PLIA was enacted in the aftermath of these events to codify and operationalize the principle of absolute liability for immediate relief.

Although the M.C. Mehta case established the principle, the PLIA provided the statutory framework for its practical application, making it mandatory for industries to have insurance and establishing a fund for compensation. The Act ensures that the 'polluter pays' principle is enforced, and victims are not left to protracted legal battles to prove fault, especially when facing immediate distress.

In essence, the PLIA serves as a crucial safety net, guaranteeing a baseline of compensation for victims of hazardous industrial accidents, while preserving their right to seek further, more extensive damages through other legal channels. It reflects a progressive approach to environmental and social justice, prioritizing the welfare of victims over the traditional fault-based liability regime.