The coverage offered in liability policy differs from the comprehensive policy. While liability plan only covers third-party liability, the comprehensive one covers you for the damages to the vehicle and the owner which is called as Personal Accident Cover. The limit varies from plans to plan. Moreover, additional add-on benefits are also offered by some auto insurance plans. So, it is necessary to check and compare this trait to decide the personal accidental cover along with the additional coverage, if any under the same auto insurance plan.
The varied rate of IDV's reflects different rates of premiums. Insured Declared Value, abbreviated as IDV, is the current value of the car after being adjusted for appropriate reduction. The rate of depreciation depends on the age of your car. Older the car, higher would be the depreciation and lowered would be your IDV. And it affects the Sum Assured. Hence, compare the IDV quoted offered by different car insurance plans is a must.