Even after the Maoists ' claim of responsibility , some fundamentalist Hindu groups blamed Christians for the death . Maoist group claims responsibility for killing of the leader . His death sparked a wave of Hindu - Christian riots in southern India . India 's PM has called the group the country 's biggest security threat .
Maoist group claims responsibility for killing of the leader . His death sparked a wave of Hindu - Christian riots in southern India . India 's PM has called the group the country 's biggest security threat .