Step 1: Understanding the Concept:
\(M_1\) is the most liquid measure of money supply. It consists of:
\(M_1 = C + DD + OD\)
Where:
\(C\) = Currency and coins with the public.
\(DD\) = Demand deposits of the public with commercial banks.
\(OD\) = 'Other' deposits with the RBI.
Step 2: Detailed Explanation:
Savings account deposits are considered "Demand Deposits" because the depositor can withdraw them at any time using cheques, ATMs, or transfers.
Interbank deposits (money banks keep with each other) are excluded from the money supply to avoid double counting.
Term deposits (Fixed Deposits) are not part of \(M_1\) as they have a fixed maturity period.
Step 3: Final Answer:
The deposit in a savings account falls under the category of Demand Deposits with commercial banks.