The PUC Certificate issued to a brand new car is valid for one year.
Once the validity period of new vehicle is over PUC tests must be conducted every three months. If higher than the normal limit of vehicle emission are detected, than the validity of the PUC certificate, and the time in which you would have to get a re-test done, will be decided by the reading of the test.

With the implementation of online PUC registration all the PUC testing centre are in-charged to inform the RTO of your vehicle’s pollution test results and registration number, in case the vehicle emissions are found to touch dangerous levels.

There are minimal charges for carrying out the PUC tests. The fees for the tests depends on the types of the vehicle, it ranges between INR.100 to INR.500 as per Madhya Pradesh transport department gudget notification.