What is mdui?

MEDR- Transactions done through debit card at any POS terminal means whenever you are shopping using your debit card transaction will be MEDR MERV-. MDUI - Federation recommendations - Federation-Best-Practice - REFEDS wiki. Looking for the definition of MERV? Find out what is the full meaning of MERV on Abbreviations. It is alternate solution to OTP, using this facility transaction performed through Internet Banking & Debit Card will authenticated through IN-APP. The card holder can withdraw cash from any branch of Bank of India as well as through any ATM.