The CVC received 29,838 complaints in 2015, the lowest in the past four years. It had received 62,362 such complaints, a decrease of about 52 per cent (or 32,524 complaints) during 2014, according to the report recently tabled in Parliament.
The probity watchdog had received 31,432 and 37,039 complaints of alleged corruption during 2013 and 2012 respectively, says the Commission's annual report for 2015.
In 2011, it had got 16,929 such complaints.
Of the total complaints received last year, 12,650 of them were vague or unverifiable.
Also Read
"As per the laid down procedure, the inquiry or investigation reports are required to be sent to the Commission within a period of three months," it said.
"Inordinate delays in submission of inquiry or investigation reports to the Commission are a matter of serious concern. In such situation, the Commission may call Chief Executive Officers or Chief Vigilance Officers (CVOs) concerned personally with records and documents," it said.
A total of 30,789 complaints (including some brought forward from those made in 2014) were disposed last year. Similarly, a total of 62,099 and 33,284 complaints were disposed during 2014 and 2013. The CVC took necessary action In 33,308 such plaints during 2012 as against 17,238 in 2011, the report said.