The JAC maintained that the proposed ropeway would adversely impact Lum Shyllong, particularly its trees, biodiversity and water sources. The Joint Action Committee (JAC) Against the Shillong Ropeway Project has upped the ante against the Rs 151-crore Shillong Peak Ropeway Project, threatening fresh agitation, including sit-in protests, if the Meghalaya Government fails to scrap the controversial project.