Flipkart — fraud and 1st copy of branded good, sold by flipkart

The flipkart fraud
I have purchased 64 gb hp pen drive usb 3.0, but the product which was delivered to me is fake/duplicate pen drive, which is not even 64 gb drive and speed of drive is 2.0, but on packing as well as on flipkart is clearly written that its 3.0. As i am not available to collect the product and my wife has collated, and i check the product after 10 day when i need, but filpkart is not ready to replace the product. Customer care answered all my queries with one answer. "10 days replacement period is over, seller will not able to replace the product"
I have informed customer care on same day that product is fake/duplicate, and dealer is doing fraud customer care told me that they will take action against dealer.
I convinced myself that it’s my hard luck. After couple of days when i am looking for another pen drive as 1st one is not working. I shocked, when i have seen the same product by same seller still available. I asked one of my friends to buy the same, to confirm that flipkart is doing fraud with customers.
Amazing thing is that i got same duplicate pen drive again. This convinced me flipkart is promoting fake and 1st copy of branded products and doing fraud. Flipkart team its not about the replacing or replacements or warranty, its about the fraud you are doing in the name of big sales.

I have raised grievance under customer complaint, flipkart team is given the same answer which customer care team has given.

They asked me to claim the warranty with hp. Product is fake and hp is not providing any warranty against this pen drive. For reference flipkart team and any one also check the warranty itself on hp site s/n of pen drive deliver to me is hpfd237w-08.

I still have the below concerns which flipkart is not ready to answer.

Q1. Who is responsible, if customer face any issue in product after 1 month of purchasing from flipkart and manufacturer is denied to serve the warranty as the product is fake and not genuine and replacement period is over?

Q2. Is its mentioned any were in term and condition on flipkart or communicated by flipkart by any mean that, customer has to verify the warranty with manufacturer before replacement period is over?