The appointment of a new chief in Janata Dal United -- mainly to give Chief Minister Nitish Kumar a chance to opt out of dealing with the BJP brass -- indicates a deep divide within Bihar's ruling alliance. Ramchandra Prasad Singh was named the chief of Janata Dal United today by Mr Kumar, just two weeks after he broached the matter with some partymen. The Janata Dal United has not shied away from blaming the BJP for covertly backing the rebellion by Chirag Paswan, which chopped off nearly half the party's strength in the assembly and left it as junior partner to the BJP. Today, the party openly expressed displeasure over several issues, starting with the situation in Arunachal Pradesh, where six MLAs of the party have joined the BJP, leaving it with only one MLA in the state assembly.