S. P. Udayakumar, an anti-nuclear activist who led the protest against the Koodankulam nuclear power plant in Tamil Nadu, finds himself unable to undertake international travel due to the absence of a valid passport in his possession. Udayakumar, a prominent figure at the forefront of the grassroots resistance against the Koodankulam nuclear facility in Tamil Nadu, endured the imposition of a multitude of legal charges during the arduous struggle that unfolded between 2011 and 2013.