I have created an image that catalogues the different ways of making payments so that anyone interested can find what they need and use what suits them best.
NEFT: National Electronic Funds Transfer
RTGS: Real-time gross settlement systems
IMPS: Immediate Payment Service
USSD: Unstructured Supplementary Service Data. Know more here.
UPI: Unified Payment Interface. Know more here.
AEPS: Aadhaar Enabled Payment System. It is not necessary to have a card in order to do a transaction using AEPS. Know more here.