Correct Answer:
Option A - The Clause (1) of the Article 343 of the Indian Constitution declares Hindi as the official language of the Union and it must be in Devanagri script and numeral used must be in international form of Indian numerals.
A. The Clause (1) of the Article 343 of the Indian Constitution declares Hindi as the official language of the Union and it must be in Devanagri script and numeral used must be in international form of Indian numerals.