The agency has filed chargesheet against three alleged gang members--Saleem alias Beena alias Diawan, Zuber alias Sunil alias Parvez and Sajid for IPC sections related to dacoity, abduction and gang rape besides additional charges of child rape under the Protection of Children from Sexual Offences Act (POCSO Act) 2012.
All the three are under judicial custody, CBI sources said, adding that the probe against remaining three who are in custody and some absconding members is still going on.
The sources said chargesheet has been filed in the fast track court in Bulandshahr.
A 13-year-old girl and her mother were dragged out of their car and raped by a group of assailants in a field while the victims along with their family were travelling from Noida to Shahjahanpur on the intervening night of July 29-30.
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The case was transferred to CBI on the instructions of the Allahabad High Court. The agency had registered a case on August 18 and sent a team of forensic experts and a DIG-ranked officer to the crime scene.
On the basis of his interrogation, two other gang members -- Zuber and Sajid -- were arrested by the Special Task Force of UP Police. Later, three more accused -- Naresh (25), Bablu (22) and Rais (28) -- were also arrested.