My Car's NOC got expired. What should I do ?
Since your NOC got expired, you will have to first get it cancelled, for which you might need a clarification from the RTO where you intend to register it, stating that you did not register the vehicle there. You might also need a police report stating that your vehicle was not involved in any illegal activities.
RTO works - Recently Asked Questions
For calculating the road tax in Bangalore for a car registered in Kerala, should I consider the price at which I buy the car from the original owner or the price at which the original owner buys it from the showroom ?