It fielded Union minister Ravi Shankar Prasad to launch a sharp attack on Congress, especially its top leaders Sonia and Rahul Gandhi, saying it is no longer a conventional political party representing certain ideology but a "conglomeration believing in divinity and devotion to a family".
There was nothing wrong in Modi's barb in the Rajya Sabha that Singh knew the art of taking bath wearing raincoat as he remained untainted despite all the scams in his government, Prasad said, noting that the former Prime Minister had called demonetisation "organised loot and legalised plunder".
"Now the Prime Minister is responding to it. Why are they (Congress) so troubled with this? Fun, pun, repartee and exchange of mild or strong words are a part of parliamentary convention.
"Congress has two set of leaders. Ones who come from the family are beyond criticism. They cannot make a mistake. Second set of leaders are those who are used for political convenience and then discarded. Manmohan Singh also has his utility... Those outside the family are useful, expendable entities," he said.
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"Manmohan Singh will be there as long as his utility remains... The so called credibility of Singh was abused by the dynasty to promote corruption and rank cronyism," he said.
Congress leaders compared Modi with "abhorrent" rulers and showered abuses on him, he said and referred to remarks like 'Maut ke saudagar', made by Sonia Gandhi when Modi was Gujarat Chief Minister, and 'khoon ki dalali', Rahul Gandhi's barb at Modi following surgical strikes.