Sharad Yadav and K C Tyagi represented JD(U) at the lunch hosted by Congress chief Sonia Gandhi where Kumar, who is the party president, was conspicuous by his absence.
There has been speculation about a tie-up between JD(U) and the BJP, something Kumar has repeatedly refuted. JD(U) had broken its 17-year alliance with BJP in 2013 after Narendra Modi was declared the saffron party's prime ministerial candidate.
Kumar heads the JD(U)-RJD-Congress coalition government in Bihar. The chief minister has maintained a silence on the allegations against the RJD supremo and his kin, merely saying it was for the central government to look into them.
During a recent visit to Delhi he had reportedly stressed on a larger opposition unity against the BJP-led NDA. He had also met Gandhi.
Sources close to Kumar have often rubbished reports about any bonhomie between him and the BJP.
Disclaimer: No Business Standard Journalist was involved in creation of this content