Why are the buying and selling prices different for the cryptos on CoinDCX?

Updated 

Users on CoinDCX do not have to go through the hassle of entering a market by placing orders in the order books. You can now own cryptos like Bitcoin and Ehtereum within a matter of a few clicks. You can buy and sell as much as you want without worrying about liquidity in the market as all orders are instantaneously executed. 

In order to ensure that we provide the best prices to all our users, the buy and sell prices are constantly updated after taking the bid and ask for the cryptos as inputs to get the most appropriate Buy and Sell prices.