Explanation: The Constitution of India establishes a federal system of Government. It contains all the usual features of a federation, viz., two Governments, division of powers, written Constitution, supremacy of Constitution, rigidity of Constitution, independent judiciary and bicameralism.

However, the Indian Constitution also contains a large number of unitary or non-federal features, viz., a strong Centre, single Constitution, single citizenship, flexibility of Constitution, integrated judiciary, appointment of state governor by the Centre, all-India services, and emergency provisions and so on.

Source: Laxmikanth Polity