LUCKNOW, May 30 -- A large portion of a tin shed collapsed on Platform No. 5 of the Charbagh railway station in Lucknow on Friday morning, injuring three people, including a travelling ticket examiner (TTE), and forcing railway authorities to stop the approaching Howrah-Dehradun Express moments before it entered the platform, preventing what could have turned into a major tragedy.

Railway officials said the incident occurred around 8am amid ongoing construction and repair work linked to the concourse project at the station. The collapse triggered panic among passengers and raised serious questions over safety arrangements at one of North India's busiest railway stations.

In an official statement, Northern Railway said the project engine...