Some classes of vehicle ownership, or use, are "Crown Exempt" from the requirement to be covered under the Act including vehicles owned or operated by certain councils and local authorities, national park authorities, education authorities, police authorities, fire authorities, health service bodies, the security services and vehicles used to or from Shipping Salvage purposes. Although exempt from the requirement to insure, this provides no immunity against claims being made against them, so an otherwise Crown Exempt authority may choose to insure conventionally, preferring to incur the known expense of insurance premiums rather than accept the open-ended exposure of effectively, self-insuring under Crown Exemption.
Yes, you surely can avail the NCB if you change your insurance provider at the time of renewing the policy. All you would need to do is producing a proof of the earned NCB from your current insurance provider. You can produce the original copy of your expiring policy and a certification that you haven’t filed any claim for the (expiring) insurance plan. A renewal notice or a letter stating that you’re entitled to the NCB from your previous insurance provider can be a proof for this.
Also, concessions are given to customers who have a valid membership of recognized automobile associations, like Western Automobile Association, Automobile Association of Eastern India, Automotive Research Association of India and Automobile Association of Southern India. If you have an excellent claim free driving record, then you should opt for a high ‘voluntary deductible’ amount. It is an amount which you need to pay before the insurer pays claim amount. Also, you should check for loyalty discounts if you are renewing the insurance policy with your present insurance company. Professionals like doctors, chartered accountants and government employees are entitled to avail special discounts. It is noteworthy to state that you will become eligible to get discounts only if your policy is not lapsed.
In 1998, the Progressive Insurance company started a pilot program in Texas, in which drivers received a discount for installing a GPS-based device that tracked their driving behavior and reported the results via cellular phone to the company. The program was discontinued in 2000. In following years many policies (including Progressive) have been trialed and successfully introduced worldwide into what are referred to as Telematic Insurance. Such 'telematic' policies typically are based on black-box insurance technology, such devices derive from a stolen vehicle and fleet tracking but are used for insurance purposes. Since 2010 GPS-based and Telematic Insurance systems have become more mainstream in the auto insurance market not just aimed at specialised auto-fleet markets or high value vehicles (with an emphasis on stolen vehicle recovery). Modern GPS-based systems are branded as 'PAYD' Pay As You Drive insurance policies, 'PHYD' Pay How You Drive or since 2012 Smartphone auto insurance policies which utilise smartphones as a GPS sensor, e.g. . A detailed survey of the smartphone as measurement probe for insurance telematics is provided in 
Auto insurance is financial protection, and not just for the investment you made when you bought your car. After a really serious accident, bills for damage and injuries can easily reach into hundreds of thousands of dollars. If you happen to cause such a wreck, the victims could sue you. In the worst case scenario, assets such as your savings and home could be seized.
To initiate the process, insured is required to submit a detailed estimate of loss to the insurance company. Independent automobile surveyors with engineering background are given the task of assessing the reason and extent of loss. They carefully inspect the damaged vehicle and submit their survey report with the insurance company who will review and examine it in accordance with the recommendations mentioned therein The usual practice is to authorize repairs with the repairer to whom letter is issued in this regard.