According to official sources, CBI, which began its investigation into the case after it became a political issue, found that Uttar Pradesh Police had not done due diligence before naming people as accused in the FIR.
The FIR was filed on the sequence of events provided by Nazru, uncle of the two girls whose bodies were found hanging from a tree in Badaun in last week of May, the sources said.
It was on the basis of Nazru's statement that the Uttar Pradesh Police had registered a case and arrested five people including two of its own constables. It was alleged that the two cousins were raped before being murdered.
A polygraph test of families of the girls and Nazru were conducted by the CBI and it was found in the report that there were "inconsistencies in their statements" on key questions related to the case.
Finally, the family as well as Nazru told the CBI that the main accused Pappu, named in the Uttar Pradesh Police FIR, had not taken the two girls at gunpoint but rather fled when he was spotted with the girls by Nazru.
According to the events now, Nazru found the girls with Pappu following which there was a scuffle between the two men. After this Pappu fled to his home, while the girls fled in another direction.
This has been corroborated by the field investigation by the CBI team as well, the sources said.
As the probe continues, Nazru's role has come under scanner as he is alleged to be lying consistently before CBI. During his lie detector test, Nazru had admitted he had a mobile phone. He had earlier denied possession of a phone.
The mobile phone was recovered from him and sent for forensic examination to ascertain whether any data had been deleted from the instrument, CBI said.
The two girls, aged 14 and 15, went missing from their house on the night of May 27 and their bodies were found hanging from a tree in in Ushait area the next day.
The next day, when the bodies were found hanging from a tree, Nazru claimed before the police that he had seen Pappu taking the away the girls at gun-point.
With PTI inputs,