Kushwaha, who had served in the Union council of ministers in Modi's first tenure, offered his take in a couple of tweets, sharing a video of the prime minister's abrasive speech in Kerala.
The stance adopted by the top JD(U) leader, a former Union minister himself, seems at variance with sentiments expressed by many others in the ruling 'Mahagathbandhan'.
The CBI raids, in connection with a railway land for jobs scam, commenced barely a few hours before the new government was to prove its majority on the floor of the state assembly.
Kushwaha was a minister of state in the first government headed by Prime Minister Narendra Modi from the quota of Rashtriya Lok Samata Party, then a BJP ally.
JD(U) Parliamentary Board Chairman Upendra Kushwaha was responding to queries by reporters about Singh, whose Rajya Sabha term expires in July.
Kushwaha, the parliamentary board chief of the JD(U), was alluding to the speech made by former deputy CM Sushil Kumar Modi on Friday, at a function organised by the BJP to celebrate Asoka Jayanti.
Upendra slammed the collegium system for appointment of judges, saying that the gates for aspiring judges from certain communities in this country are shut.
Union Minister and Rashtriya Lok Samata Party chief Upendra Kushwaha today joined other BJP allies in asking the government to file a review plea in the Supreme Court against its order on SC/ST Act.