Money Supply is a flow concept (True or False with Reasons)

False,

Money Supply is a ‘stock concept’ as it is measured at a particular point of time.

Money supply consists of:

1. Currency with public
2. demand deposits of the public with the commercial banks

thus when currency (notes and coins) quantity is measured. It is measured at a point of time.

For example:-

how much ₹ 500 notes are in public hand at 31st March, 2024.