Yes, Flipkart provides a mobile phone exchange offer during Big Billion Day sales, allowing you to exchange your old mobile for a new one at the right prices. On Big Billion Day sale, Flipkart offers an additional Rs. 2,000 discount on exchanging mobiles and up to Rs. 20,000 on exchanging your mobile phones. The Flipkart mobile exchange offer allows you to buy a new mobile phone online by paying only a small portion of the original price of the phone and exchanging the device that you own for it. The amount that gets deducted from the original mobile price of the new device depends on the model and the brand of the phone that you are using for the exchange.