A payment gateway is a merchant service provided by an
e-commerce application service provider that authorizes credit card or direct payments processing for e-businesses, online retailers, bricks and clicks, or traditional brick and mortar, The payment gateway may be provided by a bank to its customers in all ove rthe world,

A payment gateway facilitates a payment transaction by the transfer of information between a payment portal (such as a website, mobile phone or interactive voice response service) and the front end processor or acquiring bank.there is huge diference in between wallet and merchant transfer,
Payment Gateway, Merchant Accounts and Online Credit Card Processing Services offered by CCAvenue, South Asia's biggest Payment Gateway and Merchant Accounts service provider. Accept Visa, MasterCard, American Express etc,there is so many gateway provider who help in fanalise which one is best gateway for purchase or you can purchase gateway by fanaliser assistant because they know which gateway is best related to product knowledge like which is cheapest and best charback ratio with least transition chareges.the benifit of purchasing gateway through gateway assistant is they will provide you best gateway with cheapest one and long turm gateway and the last is they will provide you service guidence after purchasing gateway almont around for 1 year,which is best thing because after purchasing gateway the issue would be manage then,because sometimes your payment get stucked due to fake charging and it can be resolved by your fanaliser agent,
i remember one of the agent who help in fanilised for payment gateway when i was trying to fanalise the gateway,who provide me the gateway with 40% chargeback ratio,i think which is best in current market also they provide me company registration,website and 10 month of service with in least cost and the best part of this is 3.5% tansation charge,the agent number is 7015615856.i am very thankful of that agent.who helped to purchase gateway.