The express was attacked last evening, when it was running between Rathdhana and Sonepat railway station in Haryana, when some miscreants threw stones at it ahead of Rathdhana village and damaged the window panes, an official spokesperson said.
"This incident has been taken seriously. A case will be registered against the culprits and strict action initiated against them," he said.
Deputy Commissioner of Sonepat Rajiv Ratan today said that he has issued warning through public announcement in the nearby villages to take stringent action against those found involved in such incidents.