'The fight for poor will continue and nothing can stop this,' he said.
Amar, who hails from Karimnagar district, called upon all pro-Telangana forces to join hands to fight for separate statehood for the backward Telangana region.
Amar went underground in 1983 and between 1985 and 1993, worked as Janashakti zonal committee secretary of Karimnagar and Medak districts. He worked as Karimnagar district secretary 1994-96 and Telangana secretary 1997-2001.
Police claimed that Amar is involved in 13 murders in Karimnagar district and several other cases in various parts of the state. He was arrested when he was planning to revive the outfit and carry on recruitments.
Amar's elder brother Kura Rajanna, who worked as Janashakti central committee secretary, was arrested in Uttar Pradesh in 2006.