The girl was found dead in a well near her house on March 11 under suspicious circumstances, prompting immediate police intervention in the Derni Police Station area.
Five youths were booked under the Protection of Children from Sexual Offences Act and other legal provisions; the main accused, Yuvraj Kumar, has been arrested and admitted being present at the scene.
Initial post-mortem indicated death due to drowning with no external injuries or clear evidence of sexual assault