Hundred of security men were deployed to the religious event after the union home ministry alerted about a terror threat.
"We have taken the threat perception of terrorist or Maoist attack over the puja seriously," said Vinay Kumar.
"As far as the Dalai Lama's security is concerned, police are not taking any chances. Our best men have been given the responsibility of his security," he added.
Lobsang Choedak, the media officer of the Kalchakra arrangement committee lessened the fear, when he said that Lama's security was tightened in and around the places. Dalai Lama visited Bihar to attend the 10-day 32nd Kalachakra puja.