Consider the following statements. 

i)  In a federation the powers of the federal and provincial governments are clearly demarcated. 
ii)  India is a federation because the powers of the Union and state governments are specified in the Constitution and they have exclusive jurisdiction on their respective subjects. 
iii)  Sri Lanka is a federation because the country is divided into provinces. 
iv)  India is no longer a federation because some powers of the States have been devolved to the local government bodies. 
Which of the statements given above are correct?