The CBI is also looking at Rishi's Vectra Group acquiring a majority stake in Greater Noida's Indian Exposition Mart Ltd (IEML) at the time when Tinoo Joshi was posted as development commissioner, handicrafts in the ministry of textiles.

The agency is scrutinising the bank accounts of the bureaucrat couple, who were suspended by the state government after the IT department recovered more than Rs3 crore in cash during a raid on their house in February 2010.

The CBI is reportedly examining transaction details of as many as 70 bank accounts of the suspended IAS couple, whose official income would hardly warrant the opening of so many accounts.