The correct answer is option 1, the President of India is the Head of State.

Option 2, the Head of Government, is incorrect because the Prime Minister of India serves as the Head of Government.

Option 3, the Head of State and Government, is also incorrect because the President of India is only the Head of State, while the Prime Minister is the Head of Government.

Option 4, the Head of Parliament, is incorrect because the President of India is not the Head of Parliament. The Parliament is made up of two houses - the Lok Sabha (House of the People) and the Rajya Sabha (Council of States) - and has its own presiding officers.

Therefore, the President of India holds the position of Head of State, not Head of Government or Head of Parliament.