smartphone - n. a wireless device that can make telephone calls, send and receive email, and perform searches on the internet
e-Wallet – n. an electronic device that lets the user make purchases electronically
application – n. a computer program for a smartphone
vault - n. a secure place where money or valuable things are kept
accumulation - n. to collect or gather (something) as time passes
rupee – n. Indian money equal to .015 of one United States dollar
digital – adj. using computer technology; providing information in numerical form
online – adj. connected to or involving telecommunications systems