According to NDTV, a Class 1 student was attacked with a knife, allegedly by a senior, in the toilet of a school in Uttar Pradesh's Lucknow, India in a case that is chillingly similar to the murder of a seven-year-old at Gurgaon's Ryan International School.

The six-year-old boy has deep wounds on the chest and stomach, but is said to be out of danger. His parents say a senior girl student attacked him in the toilet of Brightland School on Tuesday morning. The police are looking for a girl student of Class 6, say sources.

"I was informed by the school that my son is injured. He has been attacked with knife by a girl," said the boy's father.

The police are yet to identify the attacker and establish that it was a student. School officials suspect a connection to the deadly "Blue Whale" game, which involves a set of violent tasks that end in suicide.

The boy was taken to hospital from the school. The doctor who is treating him, Sandeep Tewari, said the wounds "seem to have been inflicted with a knife-like sharp object".

As news of the attack spread across the school on Wednesday, many parents panicked about safety and accused officials of trying to hush up the case.

The director of the school, Veena Vyas, said, "I am taking all the precautions in view of Ryan International school case. We are also looking at whether it is due to the deadly game 'Blue Whale Challenge'."

She said footage from around 70 security cameras in the school was being examined.

Last year, seven-year-old Pradyuman Thakur, a Class 2 student in Ryan International School, was found with his throat slit near a school washroom. The police have charged a 16-year-old student of the same school, who allegedly wanted to put off an exam and a parent-teacher meeting at all costs.