Kolkata: Metro services were disrupted for sometime in the peak hours of Monday evening after smoke was detected beneath a Dum Dum-bound non AC rake at MG Road Metro Station.The incident triggered panic among the passengers who were standing on the platform to catch a train. After the train entered the platform, the motor man spotted smoke billowing out from beneath the rake. The matter was immediately informed to the railway officials. The power connection in the third rail was immediately disconnected. Also Read – Rain batters Kolkata, cripples normal lifeThe Metro personnel and the RPF rushed to the spot and evacuated all the passengers.The train was taken to the car shed. According to the Metro railway officials, train services between Maidan and Girish Park remained suspended for sometime due to the incident.Truncated services were being operated between Dum Dum and Girish Park in the Up line and between Maidan and Kavi Subhash stations in the Down.Some of the passengers were who were stranded at Esplanade Metro Station alleged that there was utter chaos at the station as services were suspended for more than half an hour during peak hours. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedHundreds of commuters, who entered the stations, that are situated between Maidan and Girish Park faced inconvenience due to the disruption. Many passengers took buses to reach home.The passengers alleged that things were not properly communicated to them about when would train services resume between Maidan and Girish Park.Metro authorities are yet to ascertain the cause of the smoke which might have triggered due to some technical glitches, officials suspect.A senior official of the Metro railways said the situation was brought under control within a few minutes. The train services soon resumed between Girish Park and Maidan stations. A probe has been initiated in this regard.