"Orally instructions have been given to run the trains cautiously", a railway official said.
Today two trains were delayed at Mankara station after the elephants were sighted near the tracks.
The forest department has been asked to inform the railways as and when the animals are sighted near the tracks following which the speed of the trains would be regulated, he said.
"We will also stop the trains to help the elephants pass the area ", he said.
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The elephants had strayed into the densely populated areas after crossing the national highway, Bharathapuzha river and railway lines in many parts.
Wildlife officials and police have been deployed in large numbers in the areas where the animals had been spotted. Alerts have been issued to the public to confine themselves in their homes and not to assemble in large numbers near the elephants and provoke them.
The forest department also sought the help of trained persons to drive the pachyderms back to the forest.