In a setback to Punjab, the Supreme Court on Thursday held as unconstitutional the state's 2004 law intended to deny Haryana its share of Sutlej-Yamuna water.Holding that the Punjab Termination of Agreement Act, 2004, was not in conformity with the provisions of the constitution, a constitution bench of Justice Anil R. Dave, Justice Shiva Kirti Singh, Justice Pinaki Chandra Ghose, Justice Adarsh Kumar Goel and Justice Amitava Roy answered in the negative all the four questions referred to the top court in a Presidential reference.