E-commerce (electronic commerce or EC) is the buying and selling of products and services, by the exchange of transmitting online bucks or funds or data, through an electronic network, generally on the internet with the help of an electronic device like mobile, computer or tab. The most important thing is an electronic gadget in this business. These business transactions occur either as business-to-consumer or business-to-business. The terms e-commerce and e-business are often used in a similar way. Nowadays there are different payment gateway and different security systems are also available for this business.