The correct answer is (d).
On 26 January 1950, India became a Sovereign Socialist Secular Democratic Republic. The word “Sovereign” means that India is an independent country with its own government and laws. The word “Socialist” means that India is committed to the principles of socialism, which include equality, social justice, and economic development. The word “Secular” means that India is a country where all religions are equal and there is no state religion. The word “Democratic” means that India is a country where the people have the power to choose their leaders and make decisions about their government.
The other options are incorrect because they do not accurately reflect the full nature of the Indian Republic. Option (a), “A Democratic Republic,” is incorrect because it does not include the word “Sovereign.” Option (b), “A Sovereign Secular Democratic Republic,” is incorrect because it does not include the word “Socialist.” Option (c), “A Sovereign Democratic Republic,” is incorrect because it does not include the word “Secular.”