Marvins and Sarkar iPhones

I’m looking to buy the iPhone 16 Pro, preferably the 256GB variant, and I’ve come across these two stores offering it at a very low price. Ideally, I would have purchased it from Hong Kong, but I don’t know anyone traveling to India anytime soon. I’d prefer to buy from certified Apple partners, but since I’m also getting a MacBook, I’m looking to save some money. Has anyone purchased from these stores before? Are they trustworthy, and would you recommend buying from them?