Stepping up their protest against the atomic power plant in Kudankulam, anti-nuclear activists today stood in sea waters forming a human chain off nearby Indinthakarai coast. The activists of People's Movement Against Nuclear Energy (PMANE) stood in the waters close to the shores in a new turn to their year-long rotests.Police, whose presence has been strengthened in and around the sea shores with additional forces, have beefed up security along the coast to prevent any untoward incident during the day-long protest. The agitators have put forward four demands – stoppage of the process of fuel loading in Kudankulam Nuclear Power Project, drop the plan to arrest anti-nuclear movement leaders, adequate compensation for those who suffered losses and release of those already taken into custody. The current bout of intensified protests, including the failed bid to lay siege to the plant, was launched by PMANE to prevent loading of fuel for which regulatory authorities gave the approval recently.