Schedules are lists in the Constitution of India that categorizes and tabulate bureaucratic activities and policy of the Government. Indian Constitution had originally eight schedules. The 9th schedule was added via First Amendment Act, while 10th Schedule was first added by 35th Amendment {Sikkim as Associate State}. Once Sikkim became a state of India, the 10 Schedule was repealed but later added once again by 52th Amendment Act, 1985 in context with the “Anti-defection” law. 

Eleventh Schedule was added by 73rd amendment and has list of subjects under the Panchayat Raj institutions or rural local government.

Twelfth Schedule  was added by 74th amendment and enlists the subjects under Municipalities or urban local government.