Solution
Option 1 -> A cut in Repo Rate increases money supply (correct), but a cut in Reverse Repo Rate decreases deposits to RBI, not increases.
Option 2 -> Both effects are incorrect. A cut in Repo Rate increases money supply, not decreases it.
Option 3 -> A cut in Repo Rate increases money supply, not decreases. However, the second part about Reverse Repo Rate is correct.
Option 4 -> A cut in Repo Rate makes borrowing cheaper for banks, increasing money supply. A cut in Reverse Repo Rate makes parking funds with RBI less attractive, decreasing deposits.
Hence, Option 4: increase; decrease -> When Repo Rate (rate at which RBI lends to banks) is cut, borrowing becomes cheaper, so banks borrow more, injecting more money into the economy and increasing money supply. When Reverse Repo Rate (rate at which banks park surplus funds with RBI) is cut, the returns on parking money with RBI reduce, making it unattractive for banks to keep deposits with RBI, thus decreasing their deposits to RBI. -> correct
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