A Central Bureau of Investigation (CBI) official said the decision was taken by the Juvenile Justice Board.
The Board can rule in heinous cases whether a “minor” should be treated as a “major”.
“The Board said he shall be treated as a major and not a minor,” Barun Thakur, father of the murdered boy Pradhyumn Thakur, told IANS.
Thakur said the Board also transferred the case to the District and Sessions Court, which will start hearing it from December 22.
Pradhyumn Thakur, 7, was found murdered in the school premises on September 8.
On November 8, the CBI arrested the 16-year-old boy saying he committed the horrific crime as he wanted to delay upcoming exams.