When you purchase a third-party liability (TPL) insurance, you can claim for damage caused to a third-party in the event your vehicle meets with an accident. If the aftermath of the accident leads to any bodily injuries, loss of life or damage to the property of third-party all which have been caused by your car, you get the insurance coverage.
Though this type of plan involves lesser premiums, it would not compensate for any damage to your own vehicle which you would need to bear on your own.