The BJP here on Thursday said JD(U) leader Nitish Kumar's DNA had been affected by Rashtriya Janata Dal chief Lalu Prasad's, adding that the Bihar chief minister was letting his arrogance speak."Nitish Kumar's arrogance is speaking. His DNA has been affected by Lalu Prasad's DNA," BJP leader Rajiv Pratap Rudy said here at the party headquarters."Nitish is speaking in a similar manner in which Lalu Prasad used to speak with the people of Bihar. His behaviour shows the effect of Lalu's DNA on him," he said.Rudy said it was unfortunate that Nitish ran his government like former Bihar chief minister Lalu Prasad's Jungle Raj. "He has become the soldier of Lalu's Jungle Raj."The BJP leader also said that the day he (Nitish Kumar) joined Lalu, he lost his political credibility.The BJP's response came in the wake of the Prime Minister Narendra Modi's DNA remark, made in a July 25 rally, triggering reactions from Nitish Kumar at political meetings and the recent Swabhiman Rally in Patna, terming the remark as an insult to Bihar.