"Syama Prasad Mukerjee was opposed to Article 370 which provided Jammu and Kashmir a special status... BJP by sacrificing principles of its ideological parent has killed him for the second time," Kumar told reporters on the sidelines of his weekly 'Janata ke Durbar mein Mukhiya Mantri'.
"Mukherjee, founder of Jan Sangh had launched a massive agitation against Article 370 and died for the cause in 1953. For what is BJP bursting crackers after the formation of its government in J&K ?" Kumar said in his blistering attack the saffron party with which he drove JD(U) to break alliance in June 2013.
On Jammu and Kashmir Chief Minister Mufti Mohammad Sayeed thanking Hurriyat, militant outfits and "people from across the border", an oblique reference to Pakistan, for the peaceful poll in the border state, he said BJP should make its views on it public.
Kumar's offensive against BJP came in reply to a query seeking his reaction in view of BJP President Amit Shah describing the merger between JD(U) and RJD in Bihar as "unethical."
"In Bihar, BJP by propping up a dissident (Jitan Ram Manjhi) tried to weaken me," he said, adding that there was a "big gap" in the "words and deeds" of that party.
"During poll they (BJP) promised to bring back black money and distribute Rs 9 lakh to Rs 10 lakh in the bank accounts of every poor person and and Rs 5 lakh to Rs 10 lakh to every government employee. But now its president (Amit Shah) is saying it was a 'jumla' (saying)," Kumar said.