What is the process for registration of my private label brand of TV?

Sir, I am thinking to start my own branded SMART LED TV products. Currently I am retailer and selling consumer electronics on my store. The process of arranging the SMART LED TV product is simple. I will place the order to my Delhi Supplier. He will provide me the stock of SMART LED TVs with the my brand name written on it. Do I have to take any respective measures to prevent any kind of legal issues or complications? I have no idea regarding this. As the supplier assured me that the stock he will be providing me is manufactured from an OEM Company and the manufacturing company gives the extra options of customisation of the LED TV for the vendors. Do I need to register? What should I must do. Please help me. Thank you