The Secunderabad-Agartala Express train came to a halt at Berhampur railway station in Odisha on Tuesday after passengers alerted railway officials about smoke emanating from an air-conditioning unit inside one of the coaches, according to officials. Prompt action was taken to control the smoke, but the incident left passengers in a state of panic, leading them to refuse to continue their journey in the affected coach, fearing another electrical breakdown. They demanded a replacement for the coach to ensure their safety. The smoke was initially noticed by some passengers in the B-5 coach, who immediately raised an alarm. Subsequently, a significant number of passengers disembarked from the train and refused to re-board, as confirmed by an official.