Guwahati, Jan. 19: The Krishak Mukti Sangram Samiti has rejected an IIT expert’s proposal to use a certain piano key weir technology for the Lower Subansiri power project, basing it rebuttal on its own research on the technology. Nayan Sarma, head of department of water resources in IIT Roorkee, had proposed use of the technology during a meeting with the state government, members of the expert groups and representatives of the civil society organisations on the Lower Subansiri project in Arunachal Pradesh.