Concept:
The development of anthropology in India began during the colonial period through:
• Ethnographic surveys,
• Census operations,
• Tribal studies,
• Academic institutionalization in universities.
Calcutta University played a pioneering role in establishing anthropology as an academic discipline in India.
Step 1: Understanding the growth of Anthropology in India.
Anthropology in India initially developed through:
• Administrative studies,
• Colonial ethnography,
• Museum collections,
• Tribal documentation.
Later, the subject entered universities as a formal academic discipline.
Step 2: Role of Calcutta University.
Calcutta University became:
• One of the earliest universities in India to introduce anthropology,
• A major center for anthropological teaching and research.
Anthropology as a discipline was introduced there in:
\[
\boxed{1920}
\]
Thus:
\[
\text{Option (A) is correct.}
\]
Step 3: Analyzing the remaining options carefully.
Option (B):
\[
1930
\]
This year does not correspond to the initial introduction of anthropology at Calcutta University.
Hence, incorrect.
Option (C):
\[
1922
\]
Although anthropology expanded during this period, the discipline had already been introduced earlier.
Thus, incorrect.
Option (D):
\[
1925
\]
This date is later than the actual establishment period.
Therefore, incorrect.
Step 4: Final conclusion.
Since Anthropology as a discipline was introduced in Calcutta University in 1920, the correct answer becomes:
\[
\boxed{\text{(A) 1920}}
\]