Top official sources here said the move has been prompted by indications that the Tribunal may expedite the final award since the interim award submitted in 1987 remains unimplemented till date.

In fact the Tribunal, which remained in limbo for a decade as Punjab passed through the phase of terrorism, was suddenly reactivated last year. It is expected to consider the claims and objections to the report filed by the governments of Punjab, Haryana and Rajasthan.

Punjab, which is opposed to the controversial report of the three-member Tribunal headed by former Supreme Court judge V Balakrishna Eradi, wants it to be reviewed apprehending ``injustice and discrimination'' during the final award as in the interim award. Haryana, on the otherhand, is keen on its early implementation.

According to the 1987 report, of the total 18.28 m acre feet (MAF) of water available in the two rivers, Rajasthan is to get 8.60 MAF, Punjab 5 MAF, Haryana 3.83 MAF, Delhi 0.20 MAF and J&K 0.65 MAF.

Punjab, which has been engaged in a contentious dispute with Haryana over sharing of river waters between them ever since Haryana was carved out of the former over three decades ago, feels this allocation to be arbitrary, unconstitutional and contrary to the well-accepted principle of riparian states under which only the states having natural flow of a river through them can lay claim to its water.

The Punjab Government feels that not only were these norms ignored by the interim report but also the surplus water was erroneously quantified. Moreover, the scope of Eradi Tribunal was limited by its terms of reference to determine the share of different given states.