Which of the following is/are the official language(s) of India?

Hindi and English

The correct answer is Option (3) - Hindi and English

According to Article 343, the Devanagari script of Hindi language will be the official language of the Union. It also provided that the English language along with Hindi will be continued to use for 15 more years, i.e., up to 25 January 1965 years from the date of commencement of the Constitution. Part 3 of Article 343 vests power in the Parliament to make a law to continue the use of the English language for official purposes even after 25 January 1965. the Parliament enacted The Official Languages Act, 1963. Section 3 of The Official Languages Act, 1963 came to force on the 26th day of January 1965 and provided for the continuance of the English language official purposes of the Union and for business transactions in Parliament.