DIGITAL BANKING CORE(centralized online real time exchange) CBS(CORE banking solution) RTGS (real time gross settlement) NEFT (national electronic fund transfer) RTGS and NEFT work under RBI RTGS and NEFT are used to account to account fund transfer intra bank transaction : when you transfer money within the same bank than its called intra bank transaction inter bank transaction : when you transfer money from one bank to another bank than its called inter bank transaction