Flipkart is advertising its big billion days in all newspaper and mass media but make sure what you are buying is in discount or just Mrp is raised and selling price is same.
I tried to buy a few products this morning and I found that the products in sale have the same price as it was before . SO be wise before shopping blindly.
Before doing online shopping, make sure your product MRP(shown on shopping site)matches with the MRP of the origina product. So open any other shopping site or the official website and compare the MRp. Then check the discount in the sites and buy the one that suits you:)