New Delhi, Sept. 30 -- Union Minister Rajiv Ranjan (Lalan) Singh on Wednesday hit back at Senior Congress leader Sonia Gandhi's remarks on former Bihar Chief Minister Nitish Kumar, saying that the Janata Dal United (JDU) leader "does not need Sonia Gandhi's certificate" and that his work over the past 20 years speaks for itself.

He added that he was informed that during an INDIA bloc meeting, Sonia Gandhi had allegedly called Nitish Kumar a "traitor" and said that it was good that he had left the party.

Speaking to ANI, Singh said, "We do not wish to react to the remark Sonia Gandhi made about Nitish Kumar because Nitish Kumar does not need Sonia Gandhi's certificate... Nitish Kumar has served the people of Bihar for 20 years on the str...