Option 1, which states that every State Government has powers of its own, is a feature of Indian federalism. In India, each State Government has its own set of powers and functions, which it exercises independently within its jurisdiction.

Option 2, which mentions that courts have the power to interpret the Constitution and the powers of different levels of Government, is also a feature of Indian federalism. The courts play a vital role in interpreting the Constitution and determining the division of powers between the Central Government and the State Governments.

Option 3, the correct answer, states that States are subordinate to the Central Government. This is not a feature of Indian federalism. In federal systems, both the Central and State Governments are independent and have their own spheres of authority. They are not subordinate to each other.

Option 4, which states that sources of revenue for each level of Government are clearly specified, is a feature of Indian federalism. In India, the Constitution clearly demarcates the revenue sources for the Central Government and the State Governments.

Therefore, option 3, which states that States are subordinate to the Central Government, is not a feature of Indian federalism.