The 47-year-old politician also alleged that the septuagenarian CM was "physically tired and mentally retired", claiming, "Not me, but the late BJP leader Sushil Kumar Modi had stated that Nitish Kumar suffers from a serious mental illness. I have been challenging him for long to spell out the names of ministers in his own cabinet, without looking at a piece of paper. He cannot tell the name of the district he is touring unless prompted by officials. It is unfortunate that with such a state of mind, he is ruling Bihar."