Parliamentary form of Government - This IS a feature of the Indian Constitution. In this system, the executive (Council of Ministers headed by Prime Minister) is responsible to the legislature (Parliament) and derives its authority from it.
Independence of Judiciary - This IS a feature of the Indian Constitution. The judiciary in India is separate from the executive and legislature, with the Supreme Court as the highest judicial authority. Judges are appointed through a collegium system and enjoy security of tenure.
Presidential form of Government - This is not a feature of the Indian Constitution. In a Presidential system (like in the USA), the President is both head of state and head of government, directly elected by people, and is not responsible to the legislature. India has a President who is the head of state, but executive power is exercised by the Prime Minister and Council of Ministers.
Federal Government - This IS a feature of the Indian Constitution. India has a federal structure with division of powers between the Union (central) government and state governments, though it has strong unitary features (sometimes called "quasi-federal").
