Explanation:

- Option 1: 1st January, 1964

- This is the correct date when the Limitation Act 1963 came into force in India.

- The act prescribes the time limits for different types of cases, ensuring legal proceedings occur within a reasonable period.

- Option 2: 5th October, 1963

- Incorrect. This date is not relevant to the enforcement of the Limitation Act 1963.

- October 1963 was the time when certain official processes related to the act might have been ongoing.

- Option 3: 1st January, 1965

- Incorrect. This date is not associated with the Limitation Act 1963.

- It came into effect one year earlier.

- Option 4: 1st October, 1963

- Incorrect. Not related to the enactment of the Limitation Act 1963.

- This might have been when the act received presidential assent.

Answer: Option 1 - 1st January, 1964

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