Definition: Motor third-party insurance or third-party liability cover, which is sometimes also referred to as the 'act only' cover, is a statutory requirement under the Motor Vehicles Act. It is referred to as a 'third-party' cover since the beneficiary of the policy is someone other than the two parties involved in the contract (the car owner and the insurance company). The policy does not provide any benefit to the insured. However, it covers the insured's legal liability for death/disability of third-party loss or damage to the third-party property.
Comprehensive insurance is a coverage that helps pay to replace or repair your vehicle if it's stolen or damaged in an incident that's not a collision. Comprehensive typically covers damage from fire, vandalism or falling objects (like a tree or hail). If you're financing or leasing your car, your lender likely requires comprehensive coverage. If you own your vehicle outright, it's an optional coverage on your car insurance policy.