Minister of State for Personnel Jitendra Singh said 3,078 persons have been convicted by various courts in corruption cases between 2013 and 2016.
The data, presented by him, shows that 673 people prosecuted by CBI for alleged corruption were acquitted by courts in 2013 and there was a sharp decline in the conviction rate of accused facing graft charges.
As many as 1,136 persons were convicted in 2013, but the figure started declining in the years that followed with 993 convictions in 2014 and 878 in 2015. Till January 31, 2016 only 71 persons were convicted for graft charges, the data stated.
The minister said the CVC conducts a monthly review meeting with Director CBI where, among other things, an in-depth review of the progress of investigation of cases under PC Act is done.
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"Supreme Court in a catena of judgements, from time to time and more recently in M L Sharma Vs Union of India (commonly known as coal block allocation cases) called for the independence and autonomy of CBI and as such the Central Government does not interfere in the investigation of cases carried out by CBI," he said.
"In addition, all court orders are scrutinised in CBI and appropriate action is taken thereafter," he said.