The document describes AadhaarPay, a fingerprint-based payment authorization system that aims to simplify transactions and reduce the troubles of cash payments. It allows users to link a prepaid account to AadhaarPay for secure cash deposits, withdrawals and payments at merchants using fingerprint authorization. The mobile-based system expands the reach of financial access and requires low investment. The document outlines the current functions of the AadhaarPay app like viewing accounts, requesting payments, deposits and withdrawals, and authorizing transactions with fingerprints.