While the details of searches have been withheld as the operation is going on, it is understood that 17 places are being searched, officials were quoted as saying by PTI.
Expelled BJP MLA Kuldeep Singh Sengar’s premises are also being searched, reported NDTV.
The CBI had on Saturday questioned Sengar in Sitapur jail.
The rape survivor, who is on ventilator support, remains critical as she has developed pneumonia, doctors attending to her at a hospital said, reported PTI. Her lawyer has been taken off the ventilator, but he is still not out of danger.
(With PTI inputs)