In a new twist to the alleged rape of two girls in Badaun in Uttar Pradesh, CBI has decided to exhume the bodies of the victims for a fresh autopsy as the probe agency feels that proper procedure was not followed while conducting the postmortem.

Highly-placed sources in the agency said the first post- mortem was conducted at night, which is usually against laid down procedures.

Post-mortem is not conducted after sunset except in an exceptional emergency cases.

Ahead of exhuming, CBI will constitute a medical board after which the agency will move a local court for a direction for exhuming the bodies of the two girls for a fresh postmortem.

The move comes after the autopsy report of the state government was only suggestive of rape without conclusively proving it.

The postmortem was conducted by a woman doctor who had no prior experience, said the sources.

The two cousins, 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 the village in Ushait area the next day. The incident had sparked a nationwide outrage.