Since it is not available in India yet, you're looking to sell in a very niche market. Most people would opt for a cheaper AIO that's available locally with warranty. So your best bet is to find enthusiasts who are looking to build white/aesthetic builds. You can try contacting high-end builders and check if they are willing to buy it or know customers who are interested in the item. This way you can sell it close to its US MRP.
If you're looking to sell it quickly and make a few bucks, you'd have to sell at a significantly lower price than its MRP, close to the price or lower than H100i RGB platinum or similar AIOs from other brands.