According to Article 79 of the Indian Constitution, the following are described as a part of the Parliament of India:

1. The House of the People: Also known as the Lok Sabha, it is the lower house of Parliament. Members are elected by the people of India through general elections. The Lok Sabha represents the citizens of India.

2. The Council of States: Also known as the Rajya Sabha, it is the upper house of Parliament. Members are elected by the members of the State Legislative Assemblies. The Rajya Sabha represents the states and union territories of India.

3. The President of India: Although not directly mentioned in Article 79, the President of India is an integral part of the Parliament. The President is the head of the Indian State and exercises his/her powers and functions in accordance with the Constitution.

Therefore, the correct answer is option 4: 1, 2, and 3. All three - the House of the People, the Council of States, and the President of India - are described as a part of the Parliament of India.