Explanation:

- The National Food Security Act (NFSA) was passed to ensure people have access to adequate food at affordable prices.

- Option 1: 2009 - Incorrect. This year saw the introduction of the Right to Education Act in India.

- Option 2: 2011 - Incorrect. This year was significant for various socio-political changes but not for the NFSA.

- Option 3: 2013 - Correct. The NFSA was enacted in 2013. It aimed to provide subsidized food grains to approximately two-thirds of India's population.

- Option 4: 2014 - Incorrect. This was the year after the NFSA was passed, witnessing the commencement of many implementation activities.

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