In a startling incident, a 41-year-old man identified as Harvinder Singh, a retired Army personnel, allegedly discharged a firearm inside the Sealdah-New Delhi Rajdhani Express. The incident unfolded on Thursday around 9:45 pm in the B-7 coach between Dhanbad and Gomoh stations under the Dhanbad division of East Central Railway (ECR). The act was reportedly triggered by an argument with a coach attendant over a seat.