Explanation:

- India has numerous large dams across different states, primarily for irrigation and water management.

- Maharashtra is known for its significant number of large dams, contributing to its extensive irrigation and water storage facilities.

- Tamil Nadu, while having several important dams, is not the leader in numbers.

- Rajasthan also has several dams but does not top the list.

- Gujarat has many major dams, crucial for its agriculture and water supply, but still not the most.

Answer: Option 3 - Maharashtra

Given the data as of January 2021, Maharashtra had the highest number of large dams among Indian states.