This is a quite common issue at e-commerce portals like amazon and Flipkart.
Issue 1:
Amazon doesn't have a serial number system for maximum products. After multiple cases were raised in 2019, they started to put serial numbers in a few categories like processors, routers, monitors, and other high-value products. Still, Amazon doesn't ask for serial numbers when we process the keyboard, mouse, SSD, pen drive, etc.
Issue 2: Amazon still hasn't any process to stop the fake seller or bad sellers. If a seller can produce a purchase invoice of 10 to 20 units of a particular brand, amazon will allow that seller to sell from their platform. Amazon only needs profit from seller fees, that's it. So it's very difficult to understand whether the seller will sell the genuine product ((Indian purchase, current product) or not. All the major sellers and authorized sellers have opened their own eCommerce platforms. Also, maximum Brands started where to buy section on their website, and from there you can easily choose the trusted seller.
Issue 3: As an authorized seller, we have to inform the respective brand, if their product is not sold within 6 months from the purchase date from the distributor. After that brand will take a call to liquidate those units by providing an additional discount or giving us a warranty extension. Based on that we start selling those products as brand new. If after that certain period also the product is not sold, we have to sell those as lesser warranty products on social media or forums.
Request all the forum members, please purchase from the direct seller website, also always read their return and refund policy before purchase. Like nationalpc.in has started COD, 15 days replacement/return/refund policy (if the product is damaged or not working).