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.
When the premium is not mandated by the government, it is usually derived from the calculations of an actuary, based on statistical data. The premium can vary depending on many factors that are believed to affect the expected cost of future claims.[38] Those factors can include the car characteristics, the coverage selected (deductible, limit, covered perils), the profile of the driver (age, gender, driving history) and the usage of the car (commute to work or not, predicted annual distance driven).[39]
While most of us are eager in availing no-claim bonuses (a discount in premium at renewal if no claim is made during the policy term), but we hardly pay attention towards other smaller discounts which can add up to a substantial amount. All comprehensive insurance plans offer reward for good claim history, with a discount which could be 50% of the premium.
For example, a 50-year-old woman with 30 years' driving experience and a squeaky clean licence is in a prime position for one of the cheapest insurance policies available. Her 18-year-old daughter on the other hand, recently unleashed onto the roads, will be considered a far higher risk for the insurer, consequently increasing the overall cost. Read our guide on getting cheap insurance for young drivers if this applies to you.
The insurance certificate or cover note issued by the insurance company constitutes the only legal evidence that the policy to which the certificate relates satisfies the requirements of the relevant law applicable in Great Britain, Northern Ireland, the Isle of Man, the Island of Guernsey, the Island of Jersey and the Island of Alderney. The Act states that an authorised person, such as a police officer, may require a driver to produce an insurance certificate for inspection. If the driver cannot show the document immediately on request, and evidence of insurance cannot be found by other means such as the MID, then the Police are empowered to seize the vehicle instantly.
Type of car: If you have an expensive or powerful car then you are seen as a higher risk for a number of reasons. If it’s expensive, it has a higher risk of being stolen. If it’s powerful, it’s deemed more at risk of getting into an accident driving at speed. If you want to see how your car impacts your insurance, you can check which insurance group it’s in for an indication.  
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For instance, if your automobile is registered in Chennai, the applicable charges for Zone A would be charged. Even if you shift to another town or city, the same charges would be applied. Likewise, if an automobile is registered in a town, Zone B premium charges are applicable. Later on, in case the vehicle own moves to a metro city, he would be charged the rate of the Zone B only

Liability auto insurance protects you from that worst case scenario by providing a cushion between your assets and the amount you’re on the hook for. For this reason, choosing the right auto liability limits is the most important part of your car insurance quote comparison. NerdWallet typically recommends having at least as much liability coverage as your net worth.

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