Demanding an apology from both Singh and the Congress party, Naidu said "his comments are an insult to minorities and he must apologise".
Referring to the blast on Bhopal-Ujjain express allegedly carried out by an ISIS influenced module on Tuesday, Singh had yesterday said that injustice to Muslims is making terrorist outfits attractive to them.
"For him to say that ISIS is targeting our country due to lack of justice to Muslims is a more serious threat to the unity and integrity of our country than even ISIS," Naidu told reporters here.
He also asked Singh whether the terror attacks carried out during the Congress-led UPA rule were "also spurred by injustice to muslims in our country?"
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Hitting out at Digvijay Singh, Union Minister Jitendra
Singh said he was speaking the language of separatists.
"...If a Congress leader (Digvijaya) is saying something, then he is perturbed because of the reverses in civic polls or any other polls. The situation is now that they are speaking the language of separatists," he said.
Meanwhile, All India Majlis-E-Ittehadul Muslimeen (AIMIM) chief Asaduddin Owaisi trained his guns at both the BJP and the Congress, saying ,"Congress should stop running this shop of secularism and BJP should stop running their shop of nationalism.