Bengaluru (Karnataka) [India], July 18 (ANI): Days after the arrest of Karnataka Minister B Nagendra by the ED in the alleged Karnataka Maharishi Valmiki Corporation Board scam, Karnataka Congress on Thursday accused the Bharatiya Janata Party of using the central agencies to “topple” the opposition-led state government and said that the opposition will fight it “legally.” Five ministers of Karnataka addressed the press conference on Thursday and attacked the central government over the alleged Karnataka Maharishi Valmiki Corporation Board scam. “They (the BJP) use central government, then the…