The body of the teenaged boy, who had gone missing from his house in TT Nagar, was retrieved from Upper Lake, the police said on Tuesday.
The boy was identified as Yash, 17, a student of Class 11. The body was retrieved from near Sheetla Mandir ghat.
The police said preliminary inquiry suggested that someone had told Yash that he had failed in the examination.
"The preliminary investigation suggests that someone had jokingly told him that he had failed but the boy took it to heart and left home. The body was recovered from the lake," said a policeman at Talaiya police station.
"The family is in shock and we are yet to record their statements. Once we speak to the family members, further action would be taken," he added. "In fact, we have come to know that he had passed," said the policeman.
The police said they were yet to ascertain the identity of the person who played the prank that led to the boy's death. The Talaiya police are conducting investigation into the circumstances surrounding the suicide.
Of late, there have been several such incidents where teenagers ended their lives due to examination related stress.
On March 23, a teenaged boy ended his life by hanging self in Misrod. Jatin, who was a student of Class 12, had committed suicide in his house, because he worried about his result.
Similarly, 16-year- old Yasmin, student of Class 10, had committed suicide just over a fortnight ago in Raisen. She was depressed because she felt that she hadn't done well in the examination. On the day of the incident, she kept crying after returning from school and didn't even have her food. However, the family members didn't anticipate that she would take the extreme step.
Besides, a 14-year-old boy, Bhavishya Kumar, hanged himself in his house in Khajuri.