Step 1: Understanding the Concept:
India is one of the leading fish-producing nations in the world, ranking third in total fish production and second in aquaculture.
The Department of Fisheries, Government of India, publishes annual statistical handbooks detailing marine and inland production.
Detailed Explanation:
During the fiscal year 2021-22, India's total fish production reached a record high of 16.25 million metric tonnes (mmt).
This total production is characterized by a strong contribution from the inland sector:
- Inland Fisheries Aquaculture: Contributes approximately $12.12 \text{ mmt}$ (around $75\%$ of the total).
- Marine Fisheries: Contributes approximately $4.13 \text{ mmt}$ (around $25\%$ of the total).
This performance highlights the rapid growth of freshwater aquaculture in the country, driven by schemes like the Pradhan Mantri Matsya Sampada Yojana (PMMSY).
Step 2: Final Answer:
The total fish production of India in 2021-22 is 16.25 mmt.