Adidas shoe at store VS original India website

Hey guys, so today I went and purchased 3shoes and 1 slider from adidas official showroom at a mall. When I came back home and checked the prices at their official Indian website, the prices are way lower and the difference amount is around 10k.

Why did the store not have the discounts and why did the website had discounts? I thought if the website had discounts then the store would automatically have it as well. Mind you adidas has been having discounts at store as well up to 40%.

Can I go to the store and return the products so I can order from the official website much cheaper?

Thank you!!