Among the options provided, the correct answer is option 3: Political Parties.

An extraconstitutional growth refers to an entity or institution that is not explicitly mentioned or provided for in the constitution but has emerged over time in the functioning of the democracy. Political parties in India are not mentioned in the constitution but have played a significant role in the political system of the country.

Option 1: The Attorney General of India is a constitutional position provided for in Article 76 of the Indian Constitution. The Attorney General advises the government on legal matters and represents the government in the courts.

Option 2: Autonomous Districts are mentioned in the Sixth Schedule of the Indian Constitution. They are areas with a majority tribal population and have a certain degree of autonomy in their administration.

Option 4: The Deputy Chairman of the Council of States, also known as the Rajya Sabha, is a constitutional position provided for in Article 89 of the Indian Constitution. The Deputy Chairman is elected by the members of the Rajya Sabha and assists the Chairman in the functioning of the House.

Therefore, only option 3, Political Parties, can be considered an extraconstitutional growth in the Indian democracy.