Kushinaga Superintendent of Police Dhawal Jaiswal said the boy has intellectual disability and is undergoing treatment.
His grandmother, with whom he lived, was also detained.
Police officials said that the boy called the police emergency number '112' on Tuesday night and threatened to blow up the temple with a bomb.
He also shared posts with similar messages on his Instagram and other social media accounts.
With the help of its cyber cell, the police found the location of the caller in Balua Takiya village of Patherwa police station area of Kushinagar and took him into custody.
His grandmother, with whom he lived, was also detained.
Police officials said that the boy called the police emergency number '112' on Tuesday night and threatened to blow up the temple with a bomb.
He also shared posts with similar messages on his Instagram and other social media accounts.
With the help of its cyber cell, the police found the location of the caller in Balua Takiya village of Patherwa police station area of Kushinagar and took him into custody.
