In this Act, unless the context otherwise requires,-
(a) "prescribed" means prescribed by rules made under this Act;
(b) "Tribunal" means a Water Disputes Tribunal constituted under section 4;
(c) "water dispute" means any dispute or difference between two or more State Governments with respect to-
(i) the use, distribution or control of the waters of, or in, any inter-State river or river valley; or
(ii) the interpretation of the terms of any agreement relating to the use, distribution or control of such waters or the implementation of such agreement; or
(iii) the levy of any water rate in contravention of the prohibition contained in section 7.