The Seventh Schedule is a provision of the Indian Constitution that defines and allocates the legislative powers between the Union (Central) government and the State governments. Its origin lies in the three-fold division of subjects established by the Government of India Act, 1935, and it was incorporated into the Constitution in 1950 to solve the problem of clearly delineating legislative jurisdiction in a federal structure.
The mechanism of the Schedule is governed by Article 246 of the Constitution, which distributes subjects into three lists. List I (Union List) contains 100 subjects of national importance, such as Defence and Foreign Affairs, on which Parliament has exclusive power to make laws. List II (State List) contains 61 subjects of local or regional importance, such as Police and Public Health, on which State Legislatures generally have exclusive power. List III (Concurrent List) contains 52 subjects, including Criminal Law and Marriage, where both the Parliament and State Legislatures can legislate. In case of a conflict on a Concurrent List subject, the Union law prevails, as specified in Article 254.
The Schedule is a cornerstone of India's federal structure and connects directly to the Union's Residuary Powers under Article 248, which grants Parliament the exclusive power to legislate on any matter not enumerated in the three lists. The most significant change to the Schedule occurred with the 42nd Amendment Act, 1976, which transferred five subjects, including Education and Forests, from the State List to the Concurrent List, effectively increasing the Centre's legislative domain. More recently, the 101st Amendment Act, 2016, which introduced the Goods and Services Tax (GST), significantly reshaped the fiscal federalism aspect of the Schedule.