Section 4. Constitution of Tribunal.

1[(1) When any request under section 3 is received from any State Government in respect of any water dispute and the Central Government is of opinion that the water dispute cannot be settled by negotiations, the Central Government shall, within a period not exceeding one year from the date of receipt of such request, by notification in the Official Gazette, constitute a Water Disputes Tribunal for the adjudication of the water dispute: Provided that any dispute settled by a Tribunal before the commencement of the Inter-State Water Disputes (Amendment) Act, 2002 (14 of 2000) shall not be re-opened.] 2 [(2) The Tribunal shall consist of a Chairman and two other members nominated in this behalf by the Chief Justice of India from among persons who at the time of such nomination are Judges of the Supreme Court or of a High Court.] 3 [(3) The Central Government may, in consultation with the Tribunal, appoint two or more persons as assessors to advise the Tribual in the proceedings before it.]