"As soon as we received the red alert from the state headquarters after the blasts in Bihar, all officials involved in the security of the temples were told that there should be no lapses and that any suspicious person or activities should be reported to senior officials," Arun Kumar, Additional District Magistrate (Law and Order), Mathura, said.
"All busy areas in Mathura, Vrindavan, Govardhan and Barsana are under surveillance," he said.