Yes, all of these low-cost computer parts are old stock. I've already requested a refund because the mouse's warranty is critical, whereas the CPU or any other component with less warranty may still be acceptable.Flipkart is just a marketplace. It shows whatever sellers promise. Same happened with GPU and processors when people bought these expecting full 3 years but got only 1-2 years warranty. All low priced items are old stock that's why people are facing warranty issues.
In your case Yes, it is out of warranty. You should contact Flipkart for a return.
Rog Strix impact 2Which one you bought? Also thanks for putting this in light.