What are the measures of money supply?
The RBI uses four measures of money supply denoted as M1,M2,M3,M4.
M1 = Currency notes and coins in circulation with public (but not those held by banks) + Net demand deposits with the commercial banks + Other deposits
M2 = M1 + Deposits with post-office savings banks
M3 = M1 + Fixed deposits with banks
M4 = M3 + All post-office savings bank deposits
In India, M3 is the most commonly used measure of money supply.