Congress Vice President Rahul Gandhi on Wednesday mocked the clean chit to Madhya Pradesh Chief Minister Shivraj Singh Chouhan in the Vyapam scam, saying that allegations against the BJP leader had been swept into the dustbin - a la Swachh Bharat."Naitikta gayi kuredan, Jai Swachh Bharat Abhiyaan (Morality goes into the dustbin, Hail Swachh Bharat Abhiyaan)," said Gandhi on Twitter attaching a news report on the issue.The CBI on Tuesday filed a charge sheet against 490 persons in the multi-crore Vyapam examination scam that broke out in Madhya Pradesh in 2013, while giving a clean chit to Chouhan.