The 2G spectrum allocation case was the biggest and most complicated event of his two years, said outgoing Central Bureau of Investigation (CBI) Director Amar Pratap Singh on Tuesday.
"...I had to handle several cases, including the 2G scam, Adarsh case, Commonwealth Games case, against high-profiled accused. Among them, 2G spectrum allocation scam was the biggest in terms of its complications," Singh told reporters here three days before his superannuation.
Singh also said he could not ascribe any loss figure to 2G scam, and added that the CBI was transparent and open during his tenure.
"We have attempted to be as transparent and open in the functioning. In the two years we have by and large tried to keep these commitments. My tenure was marked by complex specialised high-profile investigations to probe corruption and crime," he said. (ANI with inputs)