Concept:
The Reserve Bank of India (RBI) is India's central banking institution and plays a crucial role in regulating monetary policy, issuing currency, maintaining financial stability, and supervising the banking system.
Although the RBI currently functions as a government-owned institution, it was not originally established as a nationalized organization. Understanding its history helps explain the evolution of India's financial administration.
Step 1: Understanding the establishment of RBI.
The Reserve Bank of India was established under:
\[
\boxed{\text{Reserve Bank of India Act, 1934}}
\]
and commenced operations on:
\[
\boxed{1\ \text{April}\ 1935}
\]
Initially, it functioned as a privately owned shareholders' bank.
Its shares were held by private investors rather than the Government of India.
Step 2: Understanding the need for nationalization.
After independence in 1947, the Government of India recognized the need for greater public control over monetary policy.
A sovereign nation required:
• Government oversight of currency management.
• Effective regulation of banking activities.
• Coordinated economic planning.
• Control over credit and financial institutions.
Therefore, a decision was taken to transfer ownership of the RBI to the Government.
Step 3: Examining the nationalization process.
The nationalization was carried out through:
\[
\boxed{\text{Reserve Bank (Transfer to Public Ownership) Act, 1948}}
\]
As a result:
• Private shareholders were compensated.
• Ownership was transferred to the Government of India.
• RBI became a fully state-owned institution.
The nationalization came into effect on:
\[
\boxed{1\ \text{January}\ 1949}
\]
Step 4: Analyzing Option (A) 1947.
1947 marks India's independence.
Although the country became independent that year, RBI was not nationalized in 1947.
Therefore, Option (A) is incorrect.
Step 5: Analyzing Option (B) 1949.
The RBI officially became a government-owned institution on 1 January 1949.
Hence:
\[
\boxed{1949}
\]
is the correct answer.
Step 6: Analyzing Options (C) and (D).
Neither 1978 nor 1953 corresponds to the nationalization of RBI.
These years are associated with other events in Indian economic history.
Therefore, both options are incorrect.
Step 7: Final conclusion.
The Reserve Bank of India was nationalized in:
\[
\boxed{1949}
\]
Therefore, the correct answer is:
\[
\boxed{\text{(B) 1949}}
\]