Although law mandates insurance policy for 3rd party only but it is strongly advised to buy a comprehensive insurance policy that protects your vehicle from man-made or natural calamities. With comprehensive cover, you can claim from your insurer for accidents or damages caused to your vehicle. In the absence of comprehensive cover, you need to foot the entire bill on your own.
Finally, there is your comfort level. Consider extra coverage if you have a newer vehicle, are nervous about losing your car for a week or two and not having extra money for a rental, or simply want to make sure that potential repair bills will be covered. This is the portion you have the most control over - do you want to pay more for peace of mind or save some extra cash on a lower deductible? With a little thought on this point you will know the answer.
Insurance terms, definitions and explanations are intended for informational purposes only and do not in any way replace or modify the definitions and information contained in individual insurance contracts, policies or declaration pages, which control coverage determinations. Such terms may vary by state, and exclusions may apply. Discounts may not be applied to all policy coverages.