The CBI is suspecting that the suspended power couple of Madhya Pradesh, under the I-T department's probe for amassing illicit wealth, are among many officers who have allegedly facilitated Rishi's dealings in the defence sector, agency sources said.
The couple's proximity with Rishi is said to have developed when one of them was posted as Joint Secretary at the Defence Ministry during 1999-2004, when Vectra group signed defence deals related to supply of light helicopters, they said.
The agency has found that the couple still has close connections with Rishi and some of their funds are parked with him, they said.
The I-T department had conducted searches in Bhopal and other premises of the couple during the financial year 2009-10 and after scrutiny of their financial holdings and assets, a tax demand notice of Rs 135 crore had been issued against them.
During its searches, the I-T department recovered a diary with an entry 'RR', against which Rs 2.5 crore was listed, but the sources of this entry could not be deciphered at that time.
CBI sources said the agency has written to the I-T department seeking details of its findings on the couple's financial transactions and details of their bank account.