Correct option is C
The Indian government declared Tamil the first Classical Language of India in 2004, recognizing its rich literary heritage and antiquity. This status was based on its independent and ancient literary tradition.
Explanation of options: (a) ✘ 1954 predates the introduction of the Classical Language status concept. (b) ✘ 1997 is incorrect and unrelated to the official designation of classical languages. (c) ✔ 2004 is the correct year when Tamil was declared a Classical Language. (d) ✘ 2000 is close, but the recognition officially came in 2004.