If you want to undertake fixes on your own TVS Victor GX 125 then it is usually recommended to possess a Workshop Manual to keep just for a guide in case you need to know methods to take out a certain component such as the Door and match it again successfully.
TVS Victor GX 125 Workshop Manuals provide you with specified diagnostic information on your vehicle therefore if something is playing up it can help you determine what the problem is and how you can repair it. After that you can evaluate if this can be achieved by yourself or if the job is simply too big you are able to make a booking for your Victor GX 125 right into a nearby mechanic.
TVS Victor GX 125 manual