How Third-Party Premiums Are Set

Have you ever wondered why the third party portion of your car insurance costs the same no matter which insurer you approach? Unlike the own damage premium, which insurers price freely, third party premiums in India are regulated. Understanding how these rates are set helps you see what you are paying for and why it does not vary from company to company.

Who Decides Third-Party Rates

Third party premium rates are fixed by the Insurance Regulatory and Development Authority of India, known as IRDAI. The regulator reviews and notifies these rates, usually on an annual basis, after studying claim trends and costs across the industry. Because the rate is regulated, every insurer charges the same third party premium for a given vehicle category.

The Main Factor: Engine Capacity

For private cars, the single biggest factor in the third party premium is engine cubic capacity, measured in cc. Vehicles are grouped into broad slabs, and the premium rises with engine size.

• Small cars with low engine capacity fall in the lowest slab.
• Mid-size cars sit in a middle band.
• Large engine and premium cars attract the highest third party premium.

The logic is that larger, more powerful vehicles tend to cause more severe damage to others, so the liability premium reflects that risk.

Why Third-Party Premiums Cannot Be Negotiated

Since the rate is set by the regulator, no insurer can offer a discount on the pure third party premium. If a quote seems cheaper, the saving is coming from the own damage portion or from add-ons, not the third party rate itself. This is an important thing to know when comparing comprehensive quotes, so you compare like with like.

How Third-Party Differs From Own Damage Pricing

Own damage is risk priced

The own damage premium depends on the IDV, car model, your location, your claim history and chosen add-ons. Insurers compete on this part, which is why comprehensive quotes differ.

Third party is uniform

The third party premium ignores your individual profile beyond the vehicle category. Two owners of the same car model pay the same third party amount regardless of where they live or how they drive.

What the Third-Party Premium Buys

This premium funds your legal liability to others. If your vehicle injures a person, causes a death, or damages someone property, the third party cover pays the compensation, which can be substantial. For injury and death claims, the amounts are decided by tribunals and can be open-ended, which is part of why this cover is compulsory by law.

Why the Rates Are Reviewed

IRDAI revisits third party rates periodically because the cost of claims changes over time. As medical costs, repair costs and tribunal awards rise, the premiums needed to fund these liabilities also move. This is why your third party premium may increase even if nothing about your car or driving has changed. The revision applies across the industry at once, keeping the playing field level.

• Rising claim costs push rates up over the years.
• Changes apply uniformly to all insurers.
• Larger engine vehicles continue to pay more within each revision.

What This Means When You Compare Quotes

Because the third party portion is fixed, the only meaningful differences between comprehensive quotes lie in the own damage premium and the add-ons. When you compare plans, mentally set the third party amount aside and focus on how each insurer prices the own damage cover, the IDV they assign and the add-ons they include. That is where real savings and real differences in protection are found.

Conclusion

Third party premiums are uniform because IRDAI regulates them, with engine capacity the chief driver of cost for private cars. Knowing this helps you understand that the real differences between quotes come from the own damage side and add-ons. When comparing comprehensive policies, focus your comparison there, and a trusted advisor on TruePolicy can help you separate the fixed third party cost from the parts where you can genuinely save.