“Koi desh perfect nahi hota. Use perfect banana padta hai.”— Rang De BasantiFlipkart is the Indian version of Amazon. Back in 2014, Flipkart had its first Big Billion Day—its biggest ever sale day on October, 6th. People were thrilled, excited, and exuberant.Unfortunately, the traffic was way more than Flipkart had predicted, and it brought the whole site down. Big Billion Day lasted