The spokesman said the decision was taken as the road show district "comes under threat of Maoist guerrillas".
Jharkhand Director General of Police Rajiv Kumar, however, told IANS that they "have sanitized the road from Hazaribagh to Ranchi. All adequate security arrangements have been made for the road show."
"If the road show programme has been changed, it is the Congress party's decision and we are on high alert with adequate security forces on the road," he clarified.