Sambhu Prasad Singh, a teacher in Diphu Adarsha Hindi School was shot dead from close range by the youth, who visited him at a training session at the Basic Training School for TET teachers in the Karbi-Anglong district, they said.
The youth, for whom police has launched a manhunt, visited the school and sought permission to meet Singh, one of the participants in the training programme, police said.
After talking to Singh for about five minutes, the youth fired at him from close range and fled from the scene, they said, adding that Singh was rushed to a nearby hospital where he was declared brought dead.