IMPS is an immediate payment service provided by banks that allows for real-time interbank funds transfers at any time, including holidays and weekends. It aims to make electronic funds transfer easy and convenient for customers. Some key advantages of IMPS include real-time transfers, 24/7 availability, and convenience of using only a mobile number for transfers. Electronic funds transfer (EFT) refers to digital transfers of cash through online payment systems like ACH, wire transfers, or credit/debit cards. EFTs allow for cheaper and safer transfers compared to traditional methods.