JLKM leader Devendra Nath Mahto was admitted to Ranchi's Sadar Hospital after joining the 'Vidhan Sabha Gherao' march despite a nine-day hunger strike.
Police resorted to a lathicharge to disperse student demonstrators protesting outside the Jharkhand Legislative Assembly.
Aspirants are demanding the cancellation of the JSSC-CGL examination and a comprehensive Central Bureau of Investigation probe into recruitment irregularities.