Answered on February 28,2020
Answer to Q1:
You can drive your car in Bangalore without re-registration for 11 months. After that, you need to get it re-registered. NOC from Gurgaon has a validity period. It might be 3 to 6 months. I am not sure about it. So you need to get your vehicle re-registered in Bangalore before the expiry of NOC. In short, if you have already taken the NOC, you cannot wait till 11 months to re-register it. You have to get it re-registered before the expiry of NOC.
Answer to Q2:
Road tax to be paid in Bangalore depends on invoice price and the age of the vehicle. You can enter the purchase date and invoice price in the below link to calculate the road tax of vehicle.
For more information, please check the link below.