The parents of Divyansh, who was found dead in his school last week, has alleged that their son was sexually assaulted before his death.
The victim's father Ramheet Meena while talking to media has alleged that he saw injuries on private parts of his son in the hospital and that he suspects some foul play in his boy's death.
"I saw the body. There were some injury marks and cotton on his private parts. The principal has been threatening me since the beginning saying that keeping quiet will be good for me...," he was quoted as saying in an IBN Live report.
Deputy Chief Minister Manish Sisodia, meanwhile, slammed police for allegedly ignoring to investigate Divyansh's death from sexual assault angle.
Sisodia also said that the Delhi government would recommend a CBI probe into the case.
The Delhi police has accused Ryan International School of serious lapses, including running the school for more than 20 years without the completion certificate. The school management has been charged on several counts of criminal negligence that led to the death of a 6-year-old.
Meanwhile, the police have sent notices to top officials of Ryan Group asking them to explain on the underground reservoir at the school and operating procedures at the time of emergency.
The initial forensic and autopsy report has not found any sings of sexual assault of the victim. However, police are awaiting for the final post-mortem report to widen the investigation. .
The police had arrested school's principal Sandhya Sabu, a class teacher and three non-teaching staff on the charges of negligence causing death of the Class I student.
Last week, Divyansh was found dead in his school's underground reservoir. The management, at first, sought to blame the hyper-active behaviour of the child for the tragedy.